I have very irregular periods when off the pill. Can be anything from 5-8 weeks (usually only 8 if very stressed for some reason) but still they don't really follow a pattern. More kind of shut you eyes and throw darts at a calender. Periods Also range from heavy, painful to light and non existent. Tried tracking them and there no pattern. Had to come off the pill due to health condition in October. Am in relationship, so have been tracking periods just imcase. first day of current cycle was 5th December, there was a latex failure, like totally split just at point of ejaculation on 23rd December. Went for MAP but couldn't get one until afternoon/evening, was about 18hrs after the failure when finally took MAP. Am trying not to panic. No signs at all of period yet. Am only doubting because of failure. Am unsure as I'm so irregular how likely it is I may be pg. also am unsure when would be to early to test. Am holding out til weekend. Opinions please. I know only a stick will tell but anyone else with irregular periods had similar situation? I thought irregular periods made it more difficult to fall pg? Or is that a myth? Looking at the dates on a calender it may have been a fertile time. Can't sleep. Remaining calm on the outside, not so much on the inside. Health condition nothing todo with repo areas.