Anyone have experience using Prometrium?

🌈 Jennifer 🌈 • Blessed with a 3yo girl born 9/12. Missed miscarriage 4/15 & blighted ovum 10/15. Waiting on our rainbow due 9/16.
I've just been prescribed Prometrium for my pregnancy, I'm just shy of 4 weeks along. I've had 2 miscarriages in a row so it's a preventative measure in the event my progesterone is low.
Anyone have experience with it? Side effects that you've experienced? Success stories?
Thanks so much!