TTC on Femara after miscarriage

Cassidy • Happily married to my perfect match
I miscarried at 12 weeks last September, right after we had made our pg announcement. We have been TTC since January. Last month my doctor put me on Femara to regulate my ovualation better. I'm now 3 days late (usually on schedule) but have had severe cramping for the past 4 days. I'm waiting to take a test in the morning because I'm scared to get my hopes up since I'm cramping. Has anyone been on this med and had this happen? Thanks.