Alright, I got my period last month after having sex twice(both times using a condom) on the 6th of december. (I was due the 4th) It lasted seven days as usual and on the night of the 26th, I got drunk and had sex again(using a condom correctly) and it didn't break or overflow(that I remember). So sometime in the next couple days, I had sex again(with a condom that didn't break or overflow) and all was well. I was due on the 2nd (it's not uncommon that I'm late) and I'm three days late. I've had very weak cramps, tender breasts and a migraine for two days. Is my period coming or am I pregnent. I'm truthfully just curious.
As long as the condom ws used correctly then you are 97 = 98% covered! So I'm sure you are just experiencing PMS! Also know that because your periods are usually wonky, then your ovulation time will also be off - making it a little harder to get pregnant! Hope this answers your questions! Good luck and healht!