18 Weeks Pregnant

18 Weeks size comparison

Baby this Week

  • Your baby is much more active and you may feel your baby move.
  • Baby is about 5 ounces (142 grams) and about 5 1/2 inches long (13.97 cms).

How Big is Baby?

Baby is 5.59 inches long (14.2 cm)
(Measured from crown to rump)
Baby weighs 6.70oz (190 grams)
*Metrics above are estimates of baby at 18 weeks

Images of Baby at 18 Weeks

18 Weeks pregnant illustration
18 Week old baby in womb

Your Developments

  • You may be feeling back aches as your uterus has increased in size which may shift your normal center of gravity.

Pregnancy To Do's

  • When changing body positions try to move slowly to avoid any back or pelvic injuries.


Disclaimer: All information featured on weeksduringpregnancy.com should be used for educational purposes only and is not intended to replace medical advice.
Consult your doctor, physician or midwife regarding any personal pregnancy issues or medical conditions.