My period is 3 or 4 days late (i usually have either a 27 or 28 day cycle) - I am on CD31 today - on CD9 I went off the mini-pill, to continue to use FAM.... I don't FEEL pregnant at all, but my period is generally only late when I'm pregnant! I am thinking that maybe the 9 days on the mini pill & going off partway through my cycle has thrown things off kilter?

Yes, it's very possible that your cycle is messed up due to going off the pill mid-pack. That happened to me the last time I went off the pill. I believe I stopped it after the first week and then had my withdrawal bleeding a few days later. My next AF was a week late. After that, my cycle fixed itself back to 28 days.

......... well seems I am pregnant!! Oops...