after failed ivf

hello my dh and I have had a failed round of ivf ... we had a grade A blastocyst put back and it didn't work ...I bled on the 9th the night before the testing and up until the 18th ...some days were bleeds some where spotting....anyways my af still hasn't arrived and according to my app in on day 41 of my cycle ....is this mor al after ivf ....it's starting to get our hopes up and avoiding testing if not necessary, many thanks x