Week 15 of Pregnancy
Bones harden and hearing develops — your voice begins to register.
Fetal size
Apple
- Length
- 10.1 cm
- Crown-rump (CRL)
- Weight
- 70 g
Fetal development
- Ear bones and nerves mature so hearing begins.
- Bones harden and become more visible on ultrasound.
- The fetus moves actively in the amniotic fluid.
Maternal changes
- Nasal congestion and gum bleeding (pregnancy gingivitis) can begin.
- The bump rounds out more visibly.
Recommended checkups
- If amniocentesis is indicated, it is typically performed between weeks 15–20.
Jump to week
Textbook averages. Individual variation is wide and this is not medical advice — confirm with your OB.