This is our fifth month trying to conceive, im 19 years old. I know I'm young, but I'm engaged to be married and my fiancé is going to leave for basic training for the Air Force within these next few months.. Okay so I'm supposed to start my period in 7 days. We did have unprotected sex every other day around ovulation time... but now I'm bleeding. It's really light though... possible implantation bleeding? Please give me your opinion!