Basically, about 3 or 4 weeks ago, my boyfriend pulled my underwear down and with his still on, he just rubbed his penis up and down my vagina. The one thing I am worried about is that his penis may have slipped.. Meaning our bare genitals were rubbing against each other; although he swears up and down that never happened and that he was holding it the whole time. Anyways there was no known ejaculation or penetration involved, only lasted about 10 minutes? Also, almost 2 weeks after that happened I had a 5 day, normal flow period just 1 day later than my 28 day cycle indicated. Now.. It's February.. And I have a bad feeling ill miss my period due to pregnancy. We haven't done anything since except dry humping with 2 pairs of underwear, but I just think I'm pregnant from the situation I described that happened 3-4 weeks ago. No symptoms .. Just tired . Should I buy a test? Period expected on 2/13 :/ thank you so much