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Highlights this week

Baby movement

Your baby's legs are growing longer than her arms now, and she can move all of her joints and limbs. Your active baby is moving constantly, though you can't feel it yet.

Sex during pregnancy

As long as you have no complications, you can continue to have sex right up until your water breaks or you go into labor. You may find that in the second trimester, your sex drive comes back full force. And thanks to increased blood flow and lubrication, sex may feel better than ever. 

What can an amniocentesis tell you?

Amniocentesis can tell you whether your baby has genetic or chromosomal abnormalities, such as Down syndrome. It's usually done between 15 and 20 weeks of pregnancy, so if you want to have an amnio, talk to your healthcare provider and get one scheduled.

15 weeks is how many months?

You're in your fourth month!

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Baby development at 15 weeks

Sense of taste

Your baby is forming taste buds, and nerves begin connecting them to the brain. By about 20 weeks, your baby's taste buds will be fully formed. During pregnancy, molecules of what you eat pass through your bloodstream and make it into your amniotic fluid. But your baby doesn't actually taste what you're eating – so don't worry that she won't enjoy what you're having for dinner.   

Baby gender predictor

If you have an ultrasound coming up, you may be able to find out your baby's sex  if you don't know already. Just for fun, you can try these baby gender predictor tests. They're highly unscientific – but they still have a 50/50 chance of being right.

Your baby's face

Your baby is looking more like a little person, with eyelids, eyebrows, eyelashes, nails, hair, and well-defined fingers and toes. If you could see inside your womb, you'd catch your baby sucking a thumb, yawning, stretching and making faces!

baby with legs now longer than arms
Your baby at 15 weeks Tap the plus for more details
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Your baby is about the size of an apple

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head to bottom
2 ½
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Pregnancy symptoms during week 15

Nasal congestion

If your nose is stuffed up you can probably chalk it up to the combined effect of hormonal changes and increased blood flow to your mucous membranes. This condition is so common there's even a name for it: rhinitis of pregnancy. To get relief, try using a humidifier or vaporizer in your room at night. Elevate your head with extra pillows when you sleep, and drink plenty of fluids. You can also try saline nasal spray – but don't use decongestants or other medications without talking to your healthcare provider.

Nose bleeds

Keep the tissues handy: About 20 percent of pregnant women have nosebleeds thanks to increased blood volume and blood vessel expansion in the nose. These are usually harmless, but tell your provider if you have frequent nosebleeds. And if the blood flow is very heavy or doesn't stop after 30 minutes of applying pressure, call 911 or go to the emergency room.  

Heartburn during pregnancy

Heartburn (also called acid indigestion or acid reflux) is a burning sensation in your chest that usually happens after eating or at night. You may experience heartburn for the first time during pregnancy due to physical and hormonal changes (thanks, progesterone!). Although heartburn is common and generally harmless, it can be very uncomfortable. See how to prevent Heartburn during pregnancy.

Swollen gums

If your gums are bleeding when you brush or floss, you're not alone. About half of pregnant women have swollen, red, tender gums due to pregnancy gingivitis, a mild form of gum disease. It's partly caused by hormonal changes that make your gums more sensitive to the bacteria in plaque. So don't blame yourself – but do what you can do take good care of your teeth and gums during pregnancy. Brush gently twice a day, floss daily, and visit the dentist for a checkup and cleaning. Dental treatment is safe during pregnancy, just make sure to tell the staff that you're expecting.

Pregnancy weight gain

Hopefully you've said goodbye to first-trimester nausea and food aversions and can start enjoying food again. If you started pregnancy at a healthy weight, you'll aim to gain about a pound a week for the rest of your pregnancy. You need about 340 extra calories a day in the second trimester, and a good way to make these count is with these healthy, nutrient-packed pregnancy snacks.

Don't see your symptom?

Wondering about a symptom you have? Find it on our pregnancy symptoms page.
baby in womb at 15 weeks
Your body at 15 weeks Tap the plus for more details

Pregnancy checklist at 15 weeks pregnant

Pregnancy journal

Journaling is good for you! Whether you keep an actual journal or just jot down a few notes on your phone, you'll love sharing these stories with your child someday.

Moisturize your belly

Slathering on the lotion may not prevent stretch marks, but it will reduce itchiness. Get in the habit now and your skin will thank you later. Here are some great belly creams, oils, and lotions to try.

Start a pregnancy exercise routine

If you're feeling up to it, now is a good time to start a regular, pregnancy-friendly workout. Joining a class can help motivate you to stick with it. And many women find that prenatal exercise classes are a wonderful way to bond with and get support from other moms-to-be. Some good options include water exercise, prenatal yoga or Pilates, a walking group, or a prenatal dance class.

Start doing Kegels

Kegel exercises can help prevent urine leaks during and after pregnancy, keep hemorrhoids at bay, and improve the muscle tone of your vagina, making sex more enjoyable. To do them, start with an empty bladder. Then pretend that you're trying to stop yourself from passing gas and peeing at the same time, or imagine you're sitting on a marble and trying to pull it up into your vagina – it's a sensation of squeezing and lifting. Start by doing a few Kegels throughout the day, holding each one for a few seconds before releasing. Try to work up to two sets of 10 about three times a day.

Practice affirmations

An affirmation is a positive statement that you repeat to yourself to overcome negative thinking. For example, if you have fears about giving birth, you could say to yourself, "I trust my body to know what to do." Affirmations help encourage a positive mindset and can be hugely helpful for pregnancy and parenting. Start with these great affirmations.

15 weeks pregnant bellies

At 15 weeks pregnant, you may be starting to pop and boasting a belly that's clearly pregnant. It's different for every woman, though. If this isn't your first pregnancy, you'll probably start showing sooner, since your abdominal and uterine muscles have been stretched before.   

You may be in that in-between place where your regular clothes are starting to feel uncomfortable but you're not quite ready for maternity clothes. Many moms-to-be turn to yoga pants, stretchy skirts, belly bands, and these clothing hacks to make it through this stage in style.

Gas and bloating may also be making your waistband feel tight. Your body is producing way more gas than usual thanks to the hormone progesterone, which relaxes muscles throughout your body – including your digestive tract. Those relaxed muscles slow down your digestion, leading to more gas, bloating, and uncomfortable sensations in your gut.

To get relief from gas, eat smaller, more frequent meals and take your time when eating. Avoid carbonated drinks and the artificial sweetener sorbitol. And get moving – a quick walk can get your digestion moving.

This week's video


BabyCenter's editorial team is committed to providing the most helpful and trustworthy pregnancy and parenting information in the world. When creating and updating content, we rely on credible sources: respected health organizations, professional groups of doctors and other experts, and published studies in peer-reviewed journals. We believe you should always know the source of the information you're seeing. Learn more about our editorial and medical review policies.

AAFP. 2020. Prenatal diagnosis: amniocentesis and CVS. American Academy of Family Physicians. https://familydoctor.org/prenatal-diagnosis-amniocentesis-and-cvs/ [Accessed July 2021]

ACOG. 2020. How your fetus grows during pregnancy. American College of Obstetricians and Gynecologists. https://www.acog.org/womens-health/faqs/how-your-fetus-grows-during-pregnancy [Accessed July 2021]

March of Dimes. 2017. Amniocentesis. https://www.marchofdimes.org/pregnancy/amniocentesis.aspx [Accessed July 2021]

Mayo Clinic. 2020. Fetal development: The 2nd trimester. http://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in-depth/fetal-development/art-20046151[Accessed July 2021]

MedlinePlus (ADAM). 2021. Fetal development. https://www.nlm.nih.gov/medlineplus/ency/article/002398.htm [Accessed July 2021]

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Kate Marple is a writer and editor who specializes in health, pregnancy, and parenting content. She's passionate about translating complicated medical information into helpful pregnancy and parenting advice that's easy to understand. She lives in San Francisco with her family.
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