15 Weeks Pregnant

At 15 weeks, the bones are hardening and the baby can sense light. A blocked nose is common.

Baby is about the size ofAn apple

LengthAbout 10.1 cm

WeightAbout 70 g

Week 15 of 40, second trimester25 weeks to go

Your baby at 15 weeks

The bones are getting harder, and the baby can sense light through its closed eyelids. Its legs are now longer than its arms.

Your body at 15 weeks

A blocked nose and nosebleeds are common, because pregnancy hormones increase blood flow to the lining of your nose.

Your checklist this week

Ask whether any second-trimester blood screening is offered or recommended for you.
Use a humidifier or saline spray for a stuffy nose.
Keep going with your prenatal vitamin.

Not sure which week you are in?

Use our Due Date Calculator or Pregnancy Week Calculator to find out exactly how far along you are.

Your baby this week

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When to call your doctor

Bleeding from your vagina
Severe pain in your tummy
A bad headache, blurred vision or sudden swelling
Fluid leaking from your vagina
Fever, or pain when you pass urine
Later in pregnancy, your baby moving less than usual

In an emergency, call your local emergency number.

Based on ACOG and NHS guidance. Sizes are averages: every baby grows at its own pace.