I need some ones help.. any advice is needed... i have been having irregular periods for i dont know how long, but my fiance and i have had unprotected sex very often, and i am not exactly sure when i ovulate.. my period is due in about a week , but today i started bleeding, its kind of like old blood, but its not exactly light, i had to put a pad on , but i think it has stopped a little bit for a little while.. I am wondering if this is or can be implantation bleeding, my fiance says i have been very crabby, a few days ago my breast hurt for a couple days, i cant tell if i am tired more than usual beacus ei live a very busy life with ful time work nd school, but i have been going to the bathroom way to much, ie.. like two days ago i went like 5 to 6 times in like 4 hours... i m not sure if i am just stressing my self out or what..i took a preg test at home and it says negitive... please any advice will help.. THANK YOU