For the past couple of months i have been having unprotected sex with my boyfriend, and though he does use the "pull-out method"...we all know it is ineffective. I started to get worried when my period came 4 days late this month. And normally, the first day of my period comes with heavy bleeding and severe menstrual cramps. However, this time...I only spotted and my cramps were barely noticable. But now being on the second day of my period, my cramps are severe and my bleeding is heavy as it should have been yesterday. On a normal basis, my symptoms calm down after the first day. I know that i should wait it out and see if the rest of my period is irregular or not, and then start questioning...but i cant help but to worry that i might be pregnant. Is pregnancy a possibility in this case?