Prometrium??

I was wondering if anyone has ever been prescribed Prometrium when pregnant?  I had RNY in 2008 in order to battle my PCOS and to get pregnant. I found out this morning that I am finally pregnant and the Dr put me on Prometrium until I'm 12 weeks along.  I've waited so long to have a child that I am so nervous about taking anything. If anyone has any info they can share I would appreciate it.

I've never been prescribed prometrium (progesterone) while pregnant...but I miscarried my first and my 2nd pregnancy I'm certain was successful b/c of the provera (medroxyprogesterone) I took to try and start my period.  With PCOS we tend to have very low progesterone...and a successful pregnancy requires progesterone. Wishing you the best!  I'm hoping to have VSG to help conceive again and control the PCOS and my weight later this summer!