I last had sex the week of Oct. 15, which would have been ovulation week. My period came on time two weeks later and seemed completely normal - cramps, heavy bleeding, the full 5 days. The boyfriend and I use condoms, though we do very occasionally practice withdrawal. We are normally careful to use condoms every time during ovulation week, but I think we might not have applied one immediately the last time we had sex. There was no mishap, but now I'm agonizing over that little detail. I also had some pretty bad UTI-like achiness for a couple of days that I thought was related to an accidental cervix-jabbing incident and/or ovulation.
Granted, I have been under a lot of stress since October. I had to fly home to take care of my mother after a surgery. I've been moody for several weeks and am pretty freaked out with the addition of the abnormal period. I want to believe it's just stress, but I know that some women experience pain during implantation and bleed during pregnancy and I can't get those thoughts out of my head! I don't drive or have anyone that I feel comfortable sharing this with here, so I haven't been able to take a test. I may yet come up with an excuse for a trip to the store just for peace of mind. I do have a gyn appointment scheduled for Wednesday, so I suppose I'm just looking for support until then. I am so terribly paranoid.
EDIT: I had my appointment and all is well. The test was negative. I just want to thank you for your comments. Just being able to post here provided some relief, and your responses helped me calm down. <3