15 Weeks Pregnant: Symptoms & Baby Development - Babylist
15 Weeks Pregnant
April 6, 2021

15 Weeks Pregnant

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15 Weeks Pregnant.
15 Weeks Pregnant

How Big is Your Baby at 15 Weeks?

The size of baby at 15 weeks is about 4 inches long, and they weigh around 2.47 ounces. That’s about the size of a Ring Pop.

Here’s what else to know when you’re 15 weeks pregnant:

Your Baby’s Development at 15 Weeks

Every week, your baby is becoming more like, well, a baby. At 15 weeks pregnant, you may not be able to feel it yet, but your baby is moving around in there. Here’s more about your baby this week.

  • Working joints: Your baby can move all their joints and is practicing moving around in there.
  • Translucent skin: If you could see a picture of your baby, you’d see that their skin is thin and see-through. Later on, they’ll pack on some baby fat, which will make it more opaque.
  • Seeing light: Your 15 week fetus is able to sense light, even though their teeny eyes are still closed. (Pretty cool, huh?) If someone shines a flashlight on your belly, your baby will probably move away from the beam.

💛 Congratulations 💛

There are 175 days until your due date.

15 Weeks Pregnant Ultrasound


Your Body: 15 Weeks Pregnant Symptoms

At 15 weeks pregnant, as your body makes more blood to accommodate your growing baby, you may notice minor bleeding from your nose and your gums. Here are some of the 15 weeks pregnant symptoms you may be experiencing.

  • Nosebleeds: Your body is making a lot of extra blood. (By the end of your pregnancy you’ll have four extra pounds of it!) This may lead to more nosebleeds than usual.
  • Swollen gums: The extra blood volume can also make your gums more sensitive. You might want to switch to a softer toothbrush. It’s really important to take care of your teeth and gums now because pregnancy increases the risk of gum disease. So make flossing a regular habit and don’t miss your regular dental visits.
  • Gas, indigestion, and/or heartburn: Sorry, but the end of morning sickness doesn’t mean the end of tummy woes. You might be more sensitive to the foods you eat while you’re pregnant, so learn to avoid triggers (spicy and greasy foods tend to be the obvious ones, but there could be others) and avoid taking any stomach meds like antacids without your doc’s approval.
  • Libido boost: As you get your energy back, you may also notice your sex drive spike. Enjoy!
  • Dining do’s and don’ts: Now that you may have your appetite back, it’s good to think about what you’re eating. It’s advised that you should avoid some foods during pregnancy to avoid foodborne illnesses, like listeria. We have guidance here.

Pregnancy Tests Start at 15 Weeks Pregnant

There are a few big tests that you can have beginning around 15 weeks, and you’ll have some choices to make. You may consider having one or two of these optional tests:

  • Quad screen: This test screens hormones and proteins in your blood to determine the baby’s risk of having a neural tube defect, Down syndrome or other genetic condition. It usually happens between 15 weeks and 20 weeks.
  • Amniocentesis: The amnio is available between 15 weeks and 20 week. This can actually detect neural tube defects, Down syndrome or other genetic conditions with 99 percent accuracy. It’s more invasive, since amniotic fluid needs to be taken.

Talk over all your test options with your healthcare provider to decide what’s right for your family. Screening is a common place to start. If the results show a higher risk, or if your baby is at higher risk of genetic abnormalities because of family history or another reason, you may opt for a diagnostic test.

Fun Fact

Your heart literally grows during pregnancy. It gets about 12% bigger.

Your Life at 15 Weeks Pregnant

Your growing baby is your number one priority these days, but make sure you’re a very close second. Self-care has never been more important.

  • Top tip: With the first trimester firmly behind you and the second trimester energy burst on the way, now’s a perfect time to start a project. Arts and crafts, gardening, watching every episode of Gilmore Girls (again)—anything goes! But if you can, pick something you’re really excited about, not just another chore to check off your to-do list.
  • Good for your bod: Ever feel a sharp, swift pain in the pelvic region? It’s likely round ligament pain caused by your expanding belly—a common second trimester ailment. It’s not harmful to you or your baby but it might be pretty uncomfortable. Gentle stretching can help. Try adding pelvic tilts and cat-cows to your daily routine. A warm Epsom salt soak in the tub may also bring relief.
  • Self-care to-do: Although it’s best to avoid essential oils during the first trimester, many can be used to address symptoms in the second and third when diluted in an oil, like coconut oil, or diffused for a little aromatherapy. Dab diluted peppermint oil on your temples to relieve headaches, take a quick inhale of lavender before bed to help you sleep or add a drop of sweet orange and grapefruit to a diffuser for a midday mood boost. (For best practices and safety considerations, visit the National Association of Holistic Aromatherapy.)
  • Recipes to try: Iron-rich foods are important to support all that extra blood pumping through your body. Most people know that red meat is a great way to get more iron into your diet, but there are also plenty of vegetarian options, too, like spinach lentil soup or simple kale and apple salad with dates (another source of iron).

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Your 15 Weeks Pregnant Belly

When you touch your belly now, you might feel that the top of your uterus is now about four to five inches below your belly button.

Average total weight gain is about 5 pounds at the 15th week of pregnancy. If you’ve gained significantly more or less than this, don’t freak out. But your doc may want to talk about it at your next appointment, since healthy weight gain is important to your and your baby’s health.

You may start to feel baby’s movements. Those first flutters appear a different times for different moms-to-be, but some say as early as 13 weeks to 16 weeks. Others may not be able to tell the difference between gas and baby kicks until about 17 weeks to 22 weeks.

15 Week Baby Bumps from Real Moms










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15 Weeks Pregnant Checklist

  • Clothes getting tight? This is a great time to start buying maternity clothes. You don’t need tons of stuff; instead, create a good maternity capsule wardrobe.
  • Start a project. Channel that second trimester energy into something that brings you joy, like decorating your nursery, learning to knit or cooking.
  • Skip the raw fish, meat, and eggs, but load up on iron-rich staples, like red meat, lentils, and dark, leafy greens.
This information is provided for educational and entertainment purposes only. We do not accept any responsibility for any liability, loss or risk, personal or otherwise, incurred as a consequence, directly or indirectly, from any information or advice contained here. Babylist may earn compensation from affiliate links in this content. Learn more about how we write Babylist content and the Babylist Health Advisory Board.