Ovulation after a MC

Melinda • Had 4 miscarriages in 2015 and had our rainbow baby December 2016
What is wrong with me??? I had a early MC Feb 24th. We got the ok to start TTC again right away. I've been using OPKs and I've yet to ovulate. I'm on cycle day 30 now. I barely even get a line. My cycles are normally 28 days. Is this normal?