3 days late

So a little background, I’ve been doing

IVF

since September. I had one failed transfer in November. I got my period at the end of that month and again about 2 weeks later, my doctor says it’s because of the medication i was on for my ERA. But that cycle got canceled due to my lining being too low. So since about mid December I’ve been off all medications.

Well last week I was experiencing this pinching sensation on and off for about a day or 2 with some cramping and now I’m 3 days past when I’m supposed to start my period.

It’s frustrating because I really would like to get the ball rolling for my ERA.

Did my cycle get messed up from having 2 close together?

Obviously I would like to think the reason I’m late is because of pregnancy. The likelihood of that is low though, not impossible, but low.