This is my first full month off the pill. I was on it for 12 years non stop. During those 12 years my period was like clock work I always knew when it was coming. Af was supposed to come Thursday (23rd) and today makes me 3 days late. I've been cramping all week like it was going to start and nothing. I've tested and gotten 3 bfn. Is this just normal because I was on the pill for so long? Or should I keep testing?