My boyfriend and I had unprotected sex at the beginning of april a day after my last period. He pulled out before he came in me, but I am worried about pre-cum. My period is usually the last part of the month to early part of the month. It has been very irregular in the past and it will be regular for a couple of months and then it will either come late or early. It's may 9th and I still haven't had my period yet. I have taken three home pregnacy tests and all have come up negative. I am still worried that I might be pregnant. I was just wondering what are my chances of still being pregnant.