I've been told that seman can survive underneath the fingernails for upto 2 weeks. Well, if thats the case...I could possibly be pregnant. Here's the story. My boyfriend and I got to talking about somet things on the phone and he got a little excited and later told me(next day) that he really got off in the shower afterwards. Then about 1 week later he fingered me and ever since then i've been a little worried. My period has always been a little off, well a lot off and i'm just confused. I've been told that all this doesn't matter and that the fact that i'm thinking about it so much, may actually change my body and delay my period even more. I haven't had my period this whole month and i'm really worried. I really don't know what to think!