Pregnancy Countdown Things for on Computers?

Check out www.babycenter.com. They send weekly emails about in-utero development and pregnancy, plus product reviews, site recommendations, parenting tips and special offers from their partners. The emails continue after the baby's due date, so you keep informed about development.

I used babycenter too. but on my 3rd pregnancy I found babyfit.com and love it. didn't find widgets but lot's of helpfull tools and advice.

http://www.widgetbox.com/tag/pregnant
this has quite a few options.

Here's some more
http://www.babyzone.com/widgets/
http://3dpregnancy.parentsconnect.com/widget/
http://pregnancy.thefuntimesguide.com/2009/06/baby_ticker...
http://www.widdlytinks.com/pregnancy/pregnancy-tickers/

Lilypie is free and has cute characters and backgrounds. I used their site for my pregnancy countdown and after my kids were born, I started an age widget for each of them. :)

lilypie.com