Hi
The proges. will very possibly make AF late as it is when prog levels drop that the endometrium sheds and if your levels are still high it will stop that process, although i had iui and was absoultly certain that i was not pregnant and was getting alot of cramping, bloating, sore BB and i was pregnant (sorry but it did end in an ectopic) but even with my first child i was certain AF was coming so you never know ?? The symptoms can be very similar, plus prog pessaries made me cramp so who knows. Can you contact your FS? and have you stopped the prog and when? Sorry just read your still taking the pessaries so that would most definately hold off Af