I normally have a typical 5-7 day period(ive never been irregular) with the last day or two using pantyliners. This recent period however lasted 2 days of actual bleeding and it wasn't even heavy like like it normally is around that time. And the two days after have been little to no blood at all. I didn't have cramps like I normally do, and I did have sex unprotected 3 times prior but without my boyfriend "cumming" at all each time. Could I be pregnant or is just a random irregular period?