Progesterone therapy side effects??? Advice needed!

Janine • TTC baby #2!
Hi ladies-
After having my third miscarriage, I've consulted with a fertility specialist. They ran blood work yesterday and determined that I do not seem to be ovulating and to induce a period they have prescribed me 200mg progesterone for the next 14 days. I have read nothing but horror stories online and was hoping someone could tell me it's perhaps not as bad as it seems...I'm like on the fence about taking these pills. Any advice?
Thanks,
Janine