Week 15: Sensing light
You’re 15 weeks pregnant — about 25 weeks to go. Your baby is roughly the size of an apple.
Size of
an apple
Length
10.1 cm
4.0 in · crown to rump
Weight
70 g
2.47 oz
Your baby this week
Though the eyelids are still fused, your baby can now sense bright light. The legs are growing longer than the arms, and the ears are nearly in their final position.
Your body & how you might feel
You may notice a pregnancy “glow” from increased blood flow. Some people experience a stuffy nose or occasional nosebleeds as blood volume rises.
Common symptoms at week 15
- Pregnancy glow
- Stuffy nose
- Swollen gums
- Heartburn
This week’s tip: Bleeding gums are common now — keep brushing gently and don’t skip dental check-ups; oral health matters in pregnancy.
A gentle reminder: This is an estimate, not medical advice. Dates and figures are general guidance — every pregnancy is different. Your healthcare provider’s assessment, especially from an early ultrasound, always takes priority. Always speak with your provider about your pregnancy.
Week 15 FAQs
How big is the baby at 15 weeks?
At 15 weeks pregnant, your baby is roughly the size of an apple, about 10.1 cm (4.0 in) long and around 70 g. These are typical averages — every baby grows at its own pace.
How many months is 15 weeks pregnant?
15 weeks pregnant is about 3 and a half months, in the second trimester, with about 25 weeks to go until your due date.
What are common symptoms at 15 weeks?
Common experiences around week 15 include pregnancy glow, stuffy nose, swollen gums, heartburn. Symptoms vary widely — contact your provider if anything worries you.