My boyfriend and I have sex regularly but I am on the progesterone only pill which is 92% effective when taken correctly and I have never missed a day but we dont use condoms as my doctor told me I dont need to so he cums in me and has done so the last times we had sex during my fertile window (2 weeks ago). I have taken it up to 3 hours late but my pill has a 12hour window. My period is 5 days late and I'm bloated and a bit nervous as my period is never late...ps, I'm starting my 4th month on the pill...any ideas???