I have been off of birth control for about six and a half months but my periods are always regular and only four days long sometimes with left over on the fifth day. Today is Monday April 4th my last period started on Monday march the 21st and lasted longer than normal till the 26th. My boyfriend and I have of course had sex before and after that period. He pulls out since I am waiting to get new birth control. But my period ended on the 26th but I started a light bleeding that was more pink than red on the 1st of April that lasted until the 3rd. I didn't have any cramping so I dont think it could just be my periods out of whack cuz I get horrible cramps. Could this be signs of implantation or any other signs of pregnancy? Im pretty sure it can't be left over from my last period with that much lapse in time and left over I know is darker colored almost brown. Please help me.