I had an incident on the evening of Friday, May 14th. I don't want to get too graphic, but I was hooking up with a friend, and the condom slipped off -- his penis only went in probably about an inch, and I'm fairly certain he didn't ejaculate during this whole session. After that, there was no penetration. In addition, I know he peed before we started hooking up, so if the precum theory is correct, his pee likely washed off any sperm that could have been in his urethra.
The first day of my last period was on April 19th, which should have set my ovulation time between May 3 and 9th approximately. Also, I remember seeing a clear mucus substance probably sometime during the week before this incident took place -- which makes me think that I wasn't ovulating on May 14th. Even so, I was pretty freaked out this past weekend, so I took a Plan B pill on Monday morning (within the 72 hour time frame). I was supposed to get my period yesterday, but it hasn't come yet. In addition, all of last week I was taking final exams, so I've been pretty stressed this whole month, and this situation has gotten me even more worried. I've read on a lot of these posts that many women have late periods after taking Plan B, but I haven't really experienced any of the symptoms such as spotting. I just wanted to know what my chances are of being pregnant and how worried I should be. My last two periods have come on time, but my period has been a few days late in the past. Any advice/support would be greatly appreciated! Thanks!