back to back AF and fertile window.

Destiny
Does anyone else have AF and feritile window back to back? My body is getting used to not having IUD and my calendar puts AF every 2 weeks and fertile window starting the day after or even one of the last days. I had a very regular cycle with IUD so this is all confusing and new and trying to keep track of my cycle is making it hard to determine when to BD. TTC baby #2 and of course, the sooner the better.