Almost 5 weeks ago my boyfriend and I were dry humping, he was wearing boxer brief while I was wearing very thin lace underwear. Before we started I noticed he had some pre cm on his underwear and I was wet when we were humping. This happened two weeks before I was supposed to get my period. Time has passed and I was very nervous about it and still am. my period was due last week but I missed it completely. Is there any chance I could be pregnant? Please respond as soon as possible