Okay, so. My period is always regular. It almost always starts on the 24th and only last about four days. I started my birth control on the 17th four the first time and then later I started bleeding like I was having my period. Today is the 25th. What I think to be as my period had started early and has lasted eight days and is still going. My boobs have been hurting and I'm scared I could be pregnant because a few days before my period I had unprotected sex. There have also been gray chunks in my period and I'm so scared something is wrong with me...