12 Weeks
12 Weeks size comparison
Baby is the size of a
Baby at 12 weeks in womb

Baby this Week

  • The fetus assumes a more human shape as the lower body rapidly develops.
  • Blood and bone cells form.
  • The first movements begin.

How Big is Baby?

Baby is 2.13 inches long (5.4 cm)
(Measured from crown to rump)
Baby weighs 0.49oz (14 grams)
*Metrics above are estimates of baby at 12 weeks
Layout Belly
12 Weeks pregnant illustration

Your Developments

  • You may start to feel baby moving, a sensation which has been described by some women as if something were blowing bubbles through a straw in their stomach.
  • Sleeplessness may result from the discomfort or anxieties of pregnancy.

Pregnancy To Do's

  • A glass of warm milk before bed can work wonders. It's also good for your baby!
  • Organize an ultrasound for the 18th week to confirm the due date and check on your baby's development (optional).
12 Week old baby in womb