dear, i would say that you check with some doctor..because implantation does not come like heavy bleeding. I hope everything is okay with you. Wish you all the best.
With my 1st pregnancy, I tested early and tested positive. I waited until the weekend to tell my husband and took a fresh test that morning. Told him the great news. Then unfortunately started bleeding that night (like a period). Doctors confirmed that the pregnancy didn't stick. They told me when they don't stick that early, it's a good thing your body got rid of it. It's nature's way of saying it was a bad seed to begin with. 2 months later I was pregnant with my now 3 month old baby boy. Best of luck and keep trying :)