Hi Kittycat27 - I had Crinone for my 1st fresh transfer and AF arrived on time and wasn't delayed at all, I think it can but not in everybody. The other thing is how many days was your Emby.. Day 3 or Day 5 cause if it's a Blast then AF always "seems" to arrive earlier cause of short turn around after putting it back in.. Good luck sweetie.. i really hope the back pain is a good thing..
I've lost my good feeling and I think AF will probably arrive on Thursday.. Bring on BFP's for everyone else though..