i don't have progesterone problems, but my RE thinks it 'can't hurt' to have a little boost in the 2ww. so this is my first time using this, any side effects i should know about? I am really hoping there are few, i am tired of the IF side effect train. =/

Re: side effects from endometrin?
"I prayed for this child and the Lord has granted what I asked of him." ~1 Samuel 1:27
"Whatever it takes, we walk together." ~Pittsburgh Penguins
My IF-turned-baby blog
I thought I must be KU the first time I took it because I had major pregnancy symptoms that I don't normally have. Most of the ones sbrowns listed. The bloat and the sore boobs bothered me the most.
I also don't have progesterone issues but my RE felt the same way as your's.
After more than 2 years of fertility treatments, FET did the trick!
IVF March 2012 - BFP! - Severe OHSS = 8 days in the hospital in kidney failure
No heartbeat at 10w6d
FET August 27,2012 = BFP!
It's a boy!
My Blog - 3 Dogs, No Baby
IVF #1 with ICSI - ER 1/20 (16R, 12M, 10F), ET 1/23 (1-10 cell and 1-8cell transferred), BFP on 1/31 Beta #1 on 2/3 = 68, Beta #2 on 2/6 = 261 EDD 10/12/12
I'm on endometrin and since day 1 I've had "fire crotch". It has eased up some, maybe I should try the Charmin wipes. I didn't have this while I was on progesterone.
TTC #1 since Sept 2010
DX = Endo and right tube blocked
IUI #1-3 - 50mg Clomid, 75iu Gonal, Ovidrel, Progesterone = BFN
IVF #1 - ER = 9R, 9M, 8F; 5DT of 1 embryo (3 frosties) = BFP!!
Beta #1 (17dpo) = 496, Beta #2 (20dpo) = 1318, Beta #3 (22dpo) = 2190
EDD Oct 9, 2012