Femara Questions

Back in 2015 I got pregnant naturally with my son. I was shocked it happened naturally and so quickly since I have such messed up cycles.

Since ttc again, I have been facing secondary infertility due to PCOS. My doctor put me on Femara. After a couple of cycles it actually worked, but we miscarried. Since then I have been eating low carb, drinking lots of water, and exercising to get myself in shape and try and ovulate on my own like I did before, but now it seems any time I go off Femara I don’t get cycles for even longer than before I was on it.

So I have 2 questions:

1. Does Femara increase the risk of miscarriage? I’ve had one successful pregnancy without and a miscarriage with so anecdotally that makes me nervous.

2. Is there a chance I messed up my cycles permanently and now will always need Femara to ovulate and have a cycle?

I’m so sad that the dieting and exercise didn’t seem to work...

Thank you for any advice/answers you have.