By week 15 your baby can sense light through closed eyelids and is moving a lot, though usually still too lightly to feel.
Your baby this week
- Light
- Eyes are still closed, but your baby can sense light.
- Legs
- The legs are now longer than the arms.
- Bones
- The skeleton keeps hardening, and would now show up on an X-ray.
What you might notice
- Nosebleeds or congestion, both common and usually harmless.
- Darker skin, like a line down your belly or patches on your face. It usually fades after birth.
- A visible bump, and maybe your first maternity clothes.
- Feeling warmer than everyone around you.
Call your midwife, doctor or maternity unit today if
- You have bleeding, or fluid leaking from your vagina
- You have tummy pain that doesn't go away, or regular tightenings
- You're being sick so often you can't keep fluids down
- You have a fever, or it burns or stings when you pee
Any time of day or night. You will never be a nuisance for calling.
Coming up
Some people feel their baby move for the first time, often as flutters or bubbles.
Your anatomy scan.
Questions to bring to your next appointment
- What will the anatomy scan look at?
- Is it okay to find out the sex, and do you tell people at the scan?
- What should I do about skin changes or itching?
For your partner
Ask whether you both want to know the baby's sex before the scan, so nobody is caught off guard in the room.
NUGA follows you week by week
Enter your due date once and NUGA knows you're at week 15. The day before each appointment, it gathers what you've noted and the questions to bring.
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This page draws on public guidance from:
General information, not medical advice. Every pregnancy is different, and your midwife or doctor knows yours. Last updated October 2026.