Pregnancy Home > 9 Weeks Pregnant

At 9 weeks pregnant, your baby's development should be progressing nicely. During the ninth week of pregnancy, a baby's first movements can be detected with ultrasound, all fingers and toes are present, and the abdomen and chest cavities become separate. When you are 9 weeks pregnant, you may start to experience symptoms such as increased mood swings, weepiness, and indigestion.

9 Weeks Pregnant: An Overview

You are 9 weeks pregnant and at another milestone -- you have missed your second period. You are well on your way with this pregnancy.
When you are nine weeks pregnant, your baby is now about 1 inch long and weighs about one-eighth of an ounce (about equal to a paper clip). The embryonic tail at the bottom of your baby's spinal cord is shrinking, and your baby's head is now nearly half the size of its entire body.

Your Baby's Development at Week 9 of Pregnancy

The following developments typically occur during the ninth week of pregnancy:
  • Nipple and hair follicles begin to form
  • The abdomen and chest cavities become separate
  • Eye muscles and upper lip develop
  • First fetal movements can be detected using an ultrasound
  • The nerve cells of the retinas form in the eyes
  • The semicircular canals of the ears form
  • The nasal passages open to the outside
  • The nerve connections from the retina to the brain are established
  • A distinct neck connects the head to the body
  • All fingers and toes are present
  • The urinary and rectal passages are completely separate
  • The intestines start to move out of the umbilical cord and into the abdomen.
Written by/reviewed by:
Last reviewed by: Arthur Schoenstadt, MD
Last updated/reviewed:
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