Progesterone Symptoms

Al

I don’t ovulate regularly and am TTC #3. Dr put me on 12 days of progesterone. Dr said period would start by day 3 off of progesterone. Then I’ll go on Clomid 5 days into period. However, I’ve been off progesterone 4 days. Yesterday and today I have had horrible back cramps and today I’m super nauseous. These are not normal period symptoms for me. Anyone experienced these symptoms during progesterone withdrawals?!?