15 Weeks Pregnant
At 15 weeks pregnant your baby is about the size of an apple. You are in the second trimester, and this week brings its own small changes — for your baby and for you.
- Size of
- an apple
- Length
- 10.1 cm
- Weight
- 70 g
- Trimester
- 2
Your baby this week
- The bones of the inner ear harden, and the first sounds get through.
- Taste buds form and can pick up flavours in the amniotic fluid.
- Movements become smoother and more coordinated.
Your body this week
- Your blood volume keeps rising to supply the placenta.
- Extra blood flow swells the membranes in your nose.
Common symptoms
- Occasional nosebleeds and bleeding gums
- Heartburn and acid reflux, especially after meals
- Leg cramps, usually at night
What to expect
The middle months are usually the steadiest part of pregnancy. Energy often returns, the bump becomes visible, and appointments settle into a routine. With 25 weeks to go, this is a good time to plan ahead while you feel well.
Tips for this week
- Talk, read or sing to your bump — your baby is starting to hear.
- Drink water through the day; dehydration worsens tiredness and headaches.
- Keep moving gently — a daily walk helps circulation, mood and sleep.
Frequently asked questions
How many months is 15 weeks pregnant?
15 weeks is about 3.5 months. Pregnancy months do not divide evenly into weeks, so counting in weeks is more precise.
How big is my baby at 15 weeks?
At 15 weeks your baby is around an apple — roughly 10.1 cm long and about 70 g. Healthy babies vary a lot around these averages.
What symptoms are normal at 15 weeks pregnant?
The most common ones this week are listed above. Contact your doctor or midwife about heavy bleeding, severe pain, a fever, or any change in your baby’s movements.
Pregnancy weeks are counted from the first day of your last period, so week 1 begins before conception.
This article is for general information only and is not medical advice. Always talk to your doctor or midwife about your own pregnancy.