Implantation Bleeding or Period? HELP!?

My best friend had the same thing. For the first 2 months of her pregnancy she had her period, but it was light and only lasted for two or three days. I say test again in the morning, if it is negative, wait about a week after your missed period and then try again. If it is still negative, go to the doctor, thats what I plan to do. BEST OF LUCK!