My average menstural cycle length is 24 days. I was intimate with my boyfriend September 1st, which was day 16 of my cycle. My last period was august 17( I think I could be exoerimecing a period now but I'm not entirely sure. We used protection as always, a condom, and he pulls out a few seconds before he ejaculates just to be safe. He pulled out a couple seconds before and the condom didn't break. However, afterwards, I may or may not have (neither of us are entirely sure) sat on a part of his underwear that had a pre-ejaculate stain on it. I wasn't fully covered down there and it was just on his underwear. He also said it was pretty dried up. So if I sat on the part with the fairly dried up pre-ejaculate, is it at all possible that I could get pregnant from that, even if neither of us physically touched the pre-ejaculate and somehow made it go up into my body? I took a first pregnancy response test 2 days before my expected period, and then the morning of my expected period, and both were negative. What I thought was my period, came a day late which was the 11. However it was just very spotty and not consistent flow for the 11th and the day after. There was just a little bit of red blood every now and then for the 11th & 12th, mixed with a bit of brown blood but that isn't out of the norm for me because that tends to happen with most of my periods. But then starting the 13th the blood flow started to pick up quite a bit, as well as the 14th. The flow was fairly consistent, in not so sure about as consistent as it usually is, but more consistent than what I had for the previous 2 days before. I also experienced a little bit of cramping, & ive been nauseous for the past couple days but I'm hoping that's a symptom from a period. I don't experience nausea with every period I have, but that's not entirely out of the norm. & I feel like it could be due to stressing over this period because I really don't want to be pregnant. I've also been a bit dizzy, but I'm hoping and guessing because I've been very stressed about this. As for today, there's barely any blood when I use a tampon, just a small amount. I also just took another pregnancy test and it says negative, but I was worried about this being "implantation bleeding" because it started off very spotty and light. I'm hoping it's not implantation bleeding because there was more consistent blood flow for the 13th & 14th. I can't see it being possible to get pregnant from fairly dried up pre-ejaculate stuck in undeerwear as a stain, even if my underwear wasn't covering me completely. So to sum it up, we did use protection, he pulled up a couple seconds before just to be safe, and neither of us touched the pre-ejaculate (which was fairly dry) & put it up my body. I started spotting a day late after my expected period, but then it started to pick up some (still kind of a light period compared to what I experience most of the time but it was a significant amount of more blood after the first two days of spotting), and I took 3 pregnancy test: one 2 days before my expected period, one the morning of my expected period and one today, and all of them were negative. This should be my period right? Just a bit lighter because of stressing?