I had a back to back cycle (hindsight should have waited a month)
I ended up on Synarel for 12 weeks waiting for my period to arrive (even provera didn't work so started the next cycle regardless which was a disaster) I then had no period as expected again (average of 30 day cycles), then on Day 47 I did a HPT and fell over in shock with a BFP, worked out I'd ovulated around Day 28 (which had never happened before). So I guess you can say, I'm another that has had delayed periods after failed IVF.