I'm 15 and 2 days late for my period. My boyfriend and I had some of our first sexual encounters this month. We spooned and dry humped, both fully clothed. These happened before my ovulation, but right after my period had ended. A week ago, I gave my boyfriend a partial hand job (he didn't come close to finishing). I did get some precum on my hands, but he hasn't ejaculated for a couple of weeks so sperm may not have even been present. Anyways, he claims to never have even touched himself, and he felt the top of my vaginal area (no where near the opening) for only a couple of seconds. Then, about 5 days ago, he fingered me for the first time. I had touched his precum but wiped it off, & 5 minutes later I touched my clit. I'm not even sure that I used the same hand. Once again, he claims to have never touched himself before fingering me, so I'm almost 100% positive that any precum ever got in my vagina. I was sick with a cold this past week and I've heard that sickness can delay your period. And also, I've been stressing a lot. I have middelschmerz and can feel when I ovulate, and I did on the 25th of October, so I might not even be late. My boyfriend and I are just wondering if we should even be worried yet. Please respond ASAP!