Fetal Development Weeks 18 Through 21

See what's happening with your baby in the fifth month of your pregnancy.
Week 18

The unique swirls and whorls that are your baby's fingerprints begin to appear at the tips of her fingers this week. Her hands begin to make grasping motions, and she might even start sucking her thumb. This self-soothing habit can stick around into a child's toddlerhood and beyond, but all kids give it up eventually.

The placenta, that all-important nurturing organ, is now almost as big as the baby herself. Besides providing her with a steady diet of nutrients and oxygen, this dark blobby mass also receives waste products from the fetus's blood and deposits them in the mother's blood. The waste is then filtered out by the mother's kidneys.

Next:  Week 19

 


Comments Comments ( 17 )
2299969805
nateshia03 wrote:

hi board, im 19 weeks and my daughter wants a little girl so bad. I hope its a girls for her sake i dont want her to be disapointed. I really dont have no preferrence i just want a healty child. Ill find out on black friday the sex. lol

11/18/2009 06:39:04 PM Report Abuse
ramona_johnson2941580 wrote:

My little one crossed his/her legs and didn't let us find out what he/she is!!!! He/she has my sour sense of humor!!! I love it already!

11/17/2009 10:42:26 AM Report Abuse
r1grace wrote:

Hey we find out December 2nd. We are having twins! I have a step daughter who, is MY daughter! I am praying the twins come out healthy, 2nd please let me have 1 BOY. Thats not asking 2 much, is it? I am 33 and these are my first birth children, so excited

11/17/2009 09:58:24 AM Report Abuse
kaseyleach22 wrote:

I am 20 weeks and yesterday we finally found out were having a little girl!!!!

11/6/2009 12:37:28 PM Report Abuse
schmallsinmontana wrote:

I am 20 weeks and have 2 more weeks to wait for the ultrasound. This is baby #4 and we have 2 girls and 1 boy. We are hoping for a boy to even things out.

11/5/2009 05:23:35 PM Report Abuse
Add your comment
You must be logged in to leave a comment. Register | Log In
  • Mom Finds
  • Family Calendar
  • Win
Win and Save on all your Baby Gear Needs.