Pregnancy Guide

15 Weeks Pregnant

Your baby is the size of a Apple. Discover exactly what is happening to your body and your baby this week.

New pregnancy guide: Learn how weeks are counted, what each trimester means, and how to interpret your calculator results for better preparation and planning. Read the full guide

Week 15 in detail

Ears in place — the outside world is getting in

Baby this week

Taste buds form. Ears reach their final position, and sound from outside the uterus starts to register as muffled vibration. The skeleton is swapping cartilage for bone. Legs are lengthening.

  • Hearing is immature — think bass through a wall, not a concert
  • Bone hardening needs calcium and vitamin D, not a second prenatal gummy stack unless advised
  • The baby can move a lot; first flutters are still easy to miss

Your body this week

Some people feel the first flutters (quickening) — bubbles, popcorn, a twitch you would have called gas last month. First pregnancies often notice later. Nosebleeds and bleeding gums are extra blood flow, not always a toothbrush crime.

  • Left-side sleep is a habit to build before the bump forces it
  • Soft-bristle brushing and flossing still matter with tender gums
  • If you have a history of preterm birth, mention new cramping promptly

Get ready

Talk or sing to the bump if you want to — it is bonding, not a curriculum. The checklist above is sleep position, dentist, and voice. A dentist visit is safer now than waiting for a third-trimester toothache.

A general guide, not medical advice. Scan timing and symptoms vary — ask your clinician.

Baby Growth Curve

This chart visualizes the average length of the baby from week 1 to 40. Values are based on standard clinical averages.

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