My boyfriend and myself were, for lack of a better term, making out yesterday morning. That being said, I found my legs wrapped around his midsection and he was erect. I felt his genatalia push ever so slightly against the lips of my area. It was only for a moment and we both had on clothing. Ever since, my lower abdomen has been having a dull ache, almost like I have cramps. I am 16, 5 0 and about 110lbs; I m about two weeks from my period now and I am still a virgin. Is there a chance, however small, that I may be pregnant?