Week 14 of Pregnancy
Facial expressions begin to form and the kidneys begin producing amniotic fluid.
Fetal size
Lemon
- Length
- 8.7 cm
- Crown-rump (CRL)
- Weight
- 43 g
Fetal development
- Facial expressions like squinting or smiling appear as reflexes.
- The kidneys begin producing amniotic fluid.
- Fine downy hair called lanugo starts to grow.
Maternal changes
- The bump grows enough that regular pants may stop fitting.
- Pigmentation changes — linea nigra or melasma — can appear.
Recommended checkups
- Maternal serum quad screen window opens (weeks 14–22).
Jump to week
Textbook averages. Individual variation is wide and this is not medical advice — confirm with your OB.