What Happens At My 20 Week Visit?

What happens at my 20 week visit?

With the bulk of the laboratory testing, physical exam and an established due date, routine obstetric care moves into a prevention, assessment and education cycle.

Be sure to check out the other posts if you missed them!

Overwhelmed by all the information about pregnancy? Looking for a checklist to guide to each pregnancy visit? Don’t expect your birth provider to do all the work.

Take control of your care and get The Too Good to Be True Pregnancy Guides to guide each step of your pregnancy care.

These guides were made to go along with each of your visits with your provider and to make sure you are getting the most up to date, evidence-based care for you and your baby.

Make the investment in you and your baby here!

What are the components of the 20 week visit?

  • Overall assessment of woman and her baby
  • A review of symptoms or patient concerns with attention/intervention to each concern as appropriate
  • A screening (if indicated, often for depression/anxiety or intimate partner violence)
  • A brief physical exam
  • A review of an ultrasound report, laboratory/genetic screening results, or other results
  • Pertinent education
  • Reassurance
  • A review of warning signs and recommended follow up (American Academy of Pediatrics [AAP], & American College of Obstetricians and Gynecologists [ACOG], 2017); King et al., 2015)

Let’s break it down!

Review of symptoms or patient concerns

These are any symptoms that have occurred since the last visit with the provider that the patient desires to discuss with the provider.

An example is: “I went to urgent care while I was on vacation because I thought I had a UTI. The provider gave me an antibiotic, which I took, and now my symptoms are gone. Do I need to do anything else?”

Because it’s a routine visit, the review of system questions are targeted to pregnancy unless the woman’s history or questions indicate investigation and follow up. These questions are generally the same at every visit for the rest of pregnancy.

The questions are:

  • Are you feeling your baby move?
  • Are you having any vaginal bleeding, leaking of fluid, abdominal pain or contractions?
  • Have you had any visits to the emergency room since your last visit? (AAP & ACOG, 2017)

After the routine questions, I have some favorite questions that I like to ask during this visit. A lot of these questions are centered around a return to energy (although fatigue and extra naps are still very normal), return to normal appetite, and changes in sleep habits or patterns. I also like to review weight gain, nutrition and exercise.

These are some of the questions I ask at the 20 week visit:

  • Do you have any upcoming travel plans? Any babymoons planned?
  • How are you sleeping?
  • What kind of exercise are you doing?
  • Do you have any back or pelvic pain? Any round ligament pain?
  • What are your plans for education about pregnancy and childbirth?

The Screening

Screenings are usually completed in a number of fashions – sometimes by the tech asking the woman questions or by having the woman fill out a piece of paper.

Screening for psychosocial factors is an important part of prenatal care. Some risk factors (i.e. homelessness, loss of job, smoking, drinking, moving…) are present before prenatal care and some factors happen during the pregnancy or postpartum. To increase the number of opportunities to provide timely intervention, support or referral, ACOG & AAP (2017) recommend screening on a regular basis during prenatal care and documentation of each screening in the prenatal record.

If the woman has a history of depression or anxiety, reports new symptoms of either depression or anxiety, or is on medication for mood management, a screening is appropriate to assess her mood and risk. ACOG (2015) only recommends screening once during the perinatal period and once a the postpartum period...you may need to talk about your mood or coping much more often than this!

Screening tools vary across practices and regions of the world. In the United States, the most common tools used for screening in pregnancy at the EPDS or the PHQ (PHQ-2 or PHQ-9).

It is always appropriate to ask that the provider review your screening results with you – do not leave your visit without alkinag about your screening.

A screening tool is very valuable. And sometimes a woman may feel uncomfortable talking about her mood even though she knows something isn’t feeling quite right. A positive screening is a flag for your provider to ask more questions and also review options for support, counseling or resources.

The Exam, Lab Testing, and Ultrasounds



At 20 weeks, the exam is limited to checking for normal progression of the pregnancy.

  • Vital signs (weight, blood pressure, pulse)
    • Weight is an indicator of many things. It can tell your provider how severe your nausea or vomiting is, or, how often you eat fast food. Weight gain recommendations are based on BMI and most weight gain up to 16 weeks is an increase in blood volume and breast growth.
    • Blood pressure is another indicator of health in pregnancy. Typically, your blood pressure is the highest at your very first pregnancy visit and then the lowest in the second trimester.
    • Temperature is checked depending on the practice you work in.
    • Heart rates increased by 10-15 beats per minute during pregnancy – this is normal!
  • Fundal height (the location of the top of your uterus as palpated by the provider in relation to your umbilicus/belly button)
    • The height of your uterus tells the provider is the pregnancy is growing normally. A uterus that is higher in the abdomen than expected could be a twin gestation, a full bladder, and just the habitus of a woman. Typically, the fundal height is palpated up to 20 weeks. At 20 weeks, the height of the fundus is measured with a measuring tape and should measure within 1-2cm of the actual gestation of the woman.
  • Auscultation (listening) to the baby’s heart rate
    • The most exciting part of the visit! Most providers use a handheld doppler to measure to the baby’s heart rate but the heart rate can also be assessed by ultrasound machines. Normal fetal heart rates are between 110-160 beats per minute and heart rates are higher at the beginning of pregnancy.
Laboratory testing

Lab testing at the 20 week visit consists of catching up any outstanding labs from the initial OB visit and any pertinent genetic (carrier or aneuploidy) screening. Screenings vary greatly across the United States and the area of the country you live in. Insurance providers also vary. For these reasons, the series won’t go into detail about genetic screening – it really deserves it’s own post or tool!


The 20 week visit is eagerly anticipated because this visit usually involves an anatomy ultrasound. This is often the first time for a mama to find out the gender of her babe!

An anatomy ultrasound is recommended for every pregnancy. In the absence of indications to do additional ultrasounds, the best time to perform a single ultrasound is between 18 to 22 weeks (AAP & ACOG, 2017).

The anatomy ultrasound is named appropriately – the sonographer looks at the anatomy of the fetus, the placenta, the uterus and the ovaries. And it’s not just a general look, there are very specific guidelines to examine during the ultrasound. The specifics are here if you want to read the practice guideline from the Journal of Ultrasound Medicine.

Most providers are looking for a few key things:

  • The anatomy of the baby looks normal
  • The baby’s growth is normal (greater than 10th percentile overall)
  • The amniotic fluid level is normal
  • The placenta appears normal and is not near, or on top of the cervix

Sometimes the babies are little wiggle worms or very stubborn (i.e., they stay in the same position the whole ultrasound) and it is hard to get a good image of the anatomy. In these cases, the radiologist will recommend a repeat ultrasound to look at the anatomy again. Another common reason to recommend an additional ultrasound is if you have a low lying placenta, or a placenta within 2 centimeters of the cervix. For these placentas, it’s important to ensure they move away from the cervix so that the mother is able to have a vaginal birth. Most of the time, these placentas move, but they move slowly. Commonly, an anatomy ultrasound will note a low lying placenta and another ultrasound is repeated in the third trimester (2-3 months later) to see where the placenta location is.

The Education

The is so much education to offer at 20 weeks. Women aren’t nauseous or vomiting. Naps are common. Back pain can start to increase. Exercise is easy for some women in pregnancy but difficult for others. Fetal movement is starting and slowly increases each day. These are the common areas of education, but the sky really is the limit and varies greatly from provider to provider.

These are the ones that I think are best for the gestational age!

Fetal Movement

Most women feel the first little kicks of their baby (or babies) around 16 to 18 weeks. Sometimes women will not feel movement until 20-22 weeks; this is most often when your placenta is anterior. Placentas don’t have nerve endings in them, so when your baby kicks the placenta you don’t feel the movement unless they kick you hard enough to make your uterine wall move too.

The most important this is this: Fetal movement is a sign of fetal wellbeing.

The Royal College of Obstetricians & Gynaecologists has one of the best handouts I’ve seen! In short, it’s good to review when a mama is going to first feel her baby move and what she should expect in the days and weeks to follow!

At 20 weeks, even if a mama has felt her baby move, it’s important to continue talking about fetal movement through every pregnancy visit.

Another great resource is Count The Kicks – they have a great app too. While counting kicks isn’t recommended at 20 weeks, it is important to monitor your baby’s patterns. Your baby will have a pattern of movement throughout the day. They might wiggle a lot in the morning and at night, but stay quiet during the day. Or vice versa! When your baby strays from their normal patterns, that’s their way of telling you something might be wrong. If you are ever concerned about baby movements, call your birth provider.

Round ligament pain

Most women have had some round ligament pain by their 20 week visit, but many don’t know what their pain was or what caused it. The pain is usually felt when the mama moves from sitting to standing quickly, rolls from one side to the other in bed, or has a puppy or other small child pounce on their lower belly.

The pain is from the insertion points of the round ligament and it sends a lot of mamas running to labor and delivery triage because the pain can be intense. The round ligaments work to hold the uterus steady but there are always some movements of the uterus from side to side or front to back. Movements that trigger the sharp pain are felt as ’round ligament pain.’


Some good handouts for round ligament pain are here and here.

Stretches and interventions for round ligament pain are the same for most of pregnancy – so something that helped at 16 weeks will continue to help at 20 weeks, 24 weeks or as long as you have sore ligaments.

And if you are absolutely miserable from the round ligament pain, consider asking your birth provider for a pelvic floor physical therapy consult to work with a special physical therapist for your pain.

leukorrhea and vaginitis

Vaginal discharge is inevitable during pregnancy. Some of the discharge is normal and some of it can be an infection. Here’s a recap of what to expect from the vagina…and what not to!

The vagina begins to produce a normal watery discharge after puberty that contains microorganisms. This discharge helps keep the vagina clean and removes dead cells from the vagina. Women have about 1 teaspoon of discharge from the vagina every day.

The amount of vaginal discharge that you have can change throughout pregnancy. For example, you might have a little discharge in the beginning of pregnancy and more discharge in the last trimester. Some women have so much (normal) discharge that they wear a peripad during their pregnancy.

The vagina is full of bacteria. When the bacteria in the vagina are disrupted, a vaginal infection can occur. Vaginal infections are more common in pregnancy because you are not having regular periods. Vaginal infections are either a yeast infection (yeast vaginosis) or bacterial vaginosis. Sometimes infections are called vulvovaginitis (ACOG, 2021). And you can have a yeast infection and bacterial vaginosis at the same time.

Yeast infections are not harmful to the mother or the baby, but they can cause considerable itching and bothersome discharge. Bacterial vaginosis can increase a woman’s risk for preterm labor, premature rupture of membranes and infection in the uterus/amniotic sac Therefore, when bacterial vaginosis is diagnosed, the recommendation is to offer treatment. Sometimes a vaginal discharge can be a sexually transmitted infection (STI) – separate testing is offered if a STI is suspected.

You can read more here…

This is also a great chart about STDs and pregnancy. (See below).


A good rule of thumb is that any change in vaginal discharge warrants evaluation by your provider!


Nausea, vomiting, increased heart rate, shortness of breath, heartburn, frequent urination, and leg cramps are common disruptors of sleep in pregnancy.

Back sleepers aren’t sure if they can sleep on their back and stomach sleepers arren’t sure if they can sleep on their stomachs. Both are okay. 🤗

By 20 weeks gestation, most woman have a small bump that has altered their normal sleep habits in some form or fashion.

Here are some tips to improve your sleep include:

  • Keep your bedroom cool, dark and quiet
  • Go to bed at the same time each night
  • Use support pillows (this could be an extra pillow or a pregnancy pillow)
  • Read a book before bed
  • Take naps early in the day if needed
  • Avoid caffeine, heavy meals or spicy food prior to bed
  • Avoid screens in the bedroom
  • Exercise early in the day
  • Drink plenty of water during the day but reduce water after dinnertime to limit bathroom trips at night time
  • Use a sound machine or fan for white noise (this helps the baby sleep too after birth!)
  • If you’re not sleepy, do an activity out of bed until you are sleepy (Sleep Foundation, 2020)

Good sleep habits will help you feel more rested and stronger during your pregnancy. These habits will set a strong foundation for your postpartum period too!


I posted on this a while back but realized that if we aren’t intentional about talking about this during prenatal care, it’s not something that’s just going to come up in prenatal visits.

What’s a surefire way to bring this up more often? Put it on my pregnancy guides. Yep, if you see me in clinic at 20 weeks, we’re talking peanuts in your pregnancy.

Here’s the background:

Twenty years ago, the United Kingdom’s medical officer for Toxicity of Chemicals in Food made a poor recommendation. The officer recommended that mothers without a peanut allergy should avoid consumption of peanuts and products containing peanuts to avoid a peanut allergy in their baby. Well, that sounded like a good idea. The problem is that when a mother eats her body makes an immune response to that food, something called immunoglobulins, and these immunoglobulins pass through the placenta and to the baby during pregnancy (Fujimara et al., 2019).

The result of the medical officer’s recommendation to avoid peanuts during pregnancy resulted in the highest prevalence of peanut allergies in 4 to 5 year old children. Avoidance was causing more harm than good (Fujimara et al., 2019).

What evidence is there for a protective effect when pregnant mamas eat certain foods while pregnant or breastfeeding?

  • A study of 6,288 children in Finland demonstrated that eating/drinking milk products in pregnancy resulted in a lower risk of an allergy to cow’s milk in mothers not allergic to milk (odds ratio: 0.30; this means in this study, the mothers than ingested cow’s milk were 70% less likely to have a child with a milk allergy because they ingested milk during their pregnancy). This specific study found immunoglobulin A in the cord blood samples of children who did not have milk allergies. This finding supports that the maternal ingestion of milk helps produce an immune system response during pregnancy that protects the child from a future milk allergy (Fujimara at al, 2019).
  • A study of 8,205 children between 10 to 14 years old found that children of the mothers who ate peanut or tree nuts at least 5 times a week during pregnancy were 69% less likely to have a peanut allergy. An important note in this study was there was not a protective effect observed in mothers who were already allergic to peanuts or tree nuts. The reduction in peanut or tree nut allergy risk was only noted in pregnant women not previously allergic to peanuts or tree nuts (Fujimara et al., 2109).
  • A cohort study in the United States examined 1,277 mother-child pairs and found a number of factors that reduce allergy and asthma in children. This study in particular demonstrated that early exposure to allergens in the first or second trimester of pregnancy may contribute to tolerance rather than contribute to allergy development in children.
    • Ingestion of peanuts in the first trimester by pregnant women was associated with a 47% less likelihood of peanut allergy in the child.
    • Ingestion of milk during the first trimester was associated with a 17% less likelihood of asthma and a 15% less likelihood of allergic rhinitis.
    • Ingestion of wheat in the second trimester was associated with a 36% less likelihood of atopic dermatitis (Fujimara et al., 2019).
  • Breastfeeding mothers who consumed peanuts while breastfeeding and who introduced peanuts to their child before 12 months of age had reduced incidence of peanut allergy in their children (only 1.7% of population demonstrated a peanut allergy). Mothers that waited until their child was older than 12 months or avoided peanuts altogether had a 15.1% and a 17.6% increased risk of peanut allergy in their children (Fujimara et al., 2019).

If you are a woman with an allergy to peanuts, there is good news as well. The LEAP trial, a randomized controlled trial published in the New England Journal of Medicine in 2015, found that introducing peanuts to infants at higher risk for peanut allergy reduces the incidence of peanut allergy (Fujimara et al., 2019)! You can check out the LEAP study here. The study is currently looking at how long children have immune protection after exposure to peanuts and if there are other parent characteristics that could contribute or impact peanut allergy development.

Dietary supplements can also contribute to lower likelihood of asthma in childhood. Two studies (Vitamin D Antenatal Asthma Reduction Trial and the Copenhagen Prospective Studies on Asthma in Childhood) have examined Vitamin D supplementation during pregnancy and found that children of women who ingested 2,400 to 4,000 international units of Vitamin D daily during pregnancy had a 25% reduced risk of developing asthma or recurrent wheezing from ages 0 to 3 years (Fujimara et al., 2019).

Maternal intake of fish oil supplements or a diet of oily fish has been shown to offer protective effects against asthma and wheezing in children, as well as a reduction in atopic eczema and allergy to eggs.

Based on the evidence, and without a contraindication in the woman’s history or allergies, I think it’s safe to recommend nuts, milk and wheat in most pregnancies. It’s at least worth reviewing the education for the woman to make her own decision!

For women without allergies, I recommend a large container of mixed nuts (Costco size). Enjoy daily throughout your pregnancy.

The Follow Up

Whew, we made it through all that information…but where do you go from here? The follow up information is just as important as the rest of the visit!

Here’s a list to review with a woman and her family before leaving the clinic!

  • When is the next recommended appointment?
  • Are any referrals needed?
    • Genetic counselor
    • Maternal fetal medicine
    • Physical therapy
    • Chiropractor
    • Mental health counseling
    • Social work
    • Nutritionist (vegan, vegetarian, underweight/overweight BMIs, multiple gestation)
    • Lactation consultant (prior breast surgery or breastfeeding concerns)
  • Are any medical records needed?
    • Encourage patient to request records as indicated
  • Review upcoming laboratory testing
  • Review upcoming ultrasounds
  • Review need to pick up medications OTC or prescriptions
  • Enroll in group prenatal care
  • Are there any last questions or concerns?

Other goodies…

For providers and women. the Share with Women Handouts cannot be beat for many discomforts and conditions of pregnancy. ACOG’s Resources for You (Frequently Asked Questions about pregnancy/women’s health) and Healthychildren.org‘s Prenatal Resources are also excellent resources.

For any recommendations about books to read during pregnancy, I like to start with these recommendations. You can find a list of all my book recommendations for free on the BOOKS page.

  • Birth Matters by Ina May Gaskin
    • A stark reminder of how birth should be and the interventions that often intrude into an otherwise normal process. An excellent read.
  • Ina May’s Guide to Childbirth by Ina May Gaskin
    • Excellent, heartfelt, REAL stories about natural labor and childbirth, with emphasis on minimal interventions and healthy body/mind connection for the woman, fetus/infant and family.
  • Mindful Birthing: Training the Mind, Body, and Heart for Childbirth and Beyond by Nancy Bardacke
    • My #1 recommendation to women asking for the book to help them successfully prepare for pregnancy, birth and postpartum (and beyond). If I could hand this book out at every new OB visit, I would.
  • Natural Hospital Birth by Cynthia Gabriel
    • An excellent resource for the mama that wants to deliver in the hospital but equally desires a natural birth.
  • Real Food for Pregnancy by Lily Nichols
    • Recommended by a blog reader!
  • The Birth Partner: A Complete Guide to Childbirth for Dads, Doulas and All Other Labor Companions by Penny Simkin
    • Excellent read for any person planning support a woman in labor. My husband even read this while I was IN LABOR with my daughter.

These are some great online childbirth resources to recommend for the mama starting to look at education about labor and birth.

These are some great podcast recommendations for pregnancy and parenting.

Whew! That’s a wrap. Remember, this is only a guide for the 20 week visit.

Providers and patients work together to address the needs at the time of the visit. And, much of prenatal education is reviewed again and again!

Links in the post

ACOG’s Resources for You: https://www.acog.org/womens-health/resources-for-you

AIUM Practice Parameter for the Performance of Detailed Second- and Third-Trimester Diagnostic Obstetric Ultrasound Examinations: https://onlinelibrary.wiley.com/doi/10.1002/jum.15163

Bacterial vaginosis (CDC): https://www.cdc.gov/std/bv/BV-FS.pdf

Bacterial vaginosis (March of Dimes): https://www.marchofdimes.org/complications/bacterial-vaginosis.aspx

How to Introduce Peanuts to Your Baby: https://aafacenters.com/early-introduction-of-peanut/

LEAP study: http://www.leapstudy.co.uk/

MEDLINE Plus: Vaginitis: https://medlineplus.gov/vaginitis.html

Pregnancy and Sleep: https://www.sleepfoundation.org/pregnancy

Share with Women handouts: http://www.midwife.org/Share-With-Women

STDs during Pregnancy – CDC Fact Sheet (Detailed): https://www.cdc.gov/std/pregnancy/stdfact-pregnancy-detailed.htm

Yeast infections: https://www.womenshealth.gov/a-z-topics/vaginal-yeast-infections

Your Baby’s Movements (RCOG): https://www.rcog.org.uk/globalassets/documents/patients/patient-information-leaflets/pregnancy/pi-your-babys-movements-in-pregnancy.pdf


American Academy of Pediatrics, & American College of Obstetricians and Gynecologists. (2017). Guidelines for perinatal care (8th ed.). DOI 10.1002/14651858.CD003519.pub3

American College of Obstetricians and Gynecologists. (2018). Screening for perinatal depression. Commitee opinion 757. https://www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2018/11/screening-for-perinatal-depression

American College of Obstetricians & Gynecologists. (2021). Vulvovaginal health. https://www.acog.org/womens-health/faqs/vulvovaginal-health

Fujimara, T., Zing Chin Lum, S., Nagata, Y., Kawamoto, S., & Oyoshi, M.K. (2019). Influences of maternal factors over offspring allergies and the application of food allergy. Frontiers in Immunology, 10. doi: 10.3389/fimmu.2019.01933

King, T., Brucker, M., Kriebs, J., Fahey, J., Gegor, C., & Varney, H. (2015). Varney’s midwifery (5th ed.). Burlington, Massachusetts: Jones & Bartlett Learning.

Sleep Foundation. (2020). Pregnancy and sleep. https://www.sleepfoundation.org/pregnancy

Overwhelmed by all the information about pregnancy? Looking for a checklist to guide to each pregnancy visit? Don’t expect your birth provider to do all the work.

Take control of your care and get The Too Good to Be True Pregnancy Guides to guide each step of your pregnancy care.

These guides were made to go along with each of your visits with your provider and to make sure you are getting the most up to date, evidence-based care for you and your baby.

Make the investment in you and your baby here!

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