What Fertility Treatments Has Everyone Done?

Lindsey • PCOS, TTC 🌈 baby.
My husband and I have been TTC (this time) for around 6 months now, with multiple miscarriages over the past 2 years.
I do have PCOS and have been taking Progesterone pills for around 2 months. If we do not conceive next month, I'm told this won't be a good enough solution.
I'm wondering what steps everyone else has taken and what's most cost effective. Also, what has been the success with these treatments?
Thank you!