Okay so about two weeks ago me and my boyfriend had sex for the first time.. We didn't use protection and I'm not on birth control but he did pull out. I'm 8 days late on my period, could I be pregnant from his pre cum? My friend told me I'm being ridiculous but I thought I'd ask someone else's opinion..

-Jason

There have been instances where individuals have gotten pregnant from pre-cum - not from precum itself - but from remaining semen left over from prior ejaculations. The cycles themselves can be affected by stress, by eating habits, sleeping habits, exercise/or therefore lack of, and everything in between. In fact, it has been noted that stress and anxiety regarding the possibility of a missed period may in fact cause you to miss it.