So my boyfriend and I didn't have sex, but we were both naked and I was on top of him riding his penis. But every time he would feel like anything was coming out of his penis (Precum, cum) he'd push me away from it and wipe it up with a towel. At no point did his penis go inside me. I was just going back and forth with my body along it. Anyway, it's been an extremely stressful month for me-moving back home from college, exams, sports, it's all been a lot. I remember being really stressed those last two weeks of school. My last period began on April 10th, and I usually have about a 30 day cycle so I should have gotten my next period May 10th. It is now May 16th and I'm a little freaked out because it's not usually late. But now I'm taking into consideration stress, and wondering if that could be the reason for my "usually on time period" being six days late now. I have no symptoms of either pregnancy or period and it's just weird.