what color was the blood? Was it brown, red or pink
- Brown could be just left over blood from your last menstrual cycle.
- Red is either your period or something wrong with a pregnancy.
- Pink can happen when pregnant and can be caused by the penis hitting the cervix and because it's so sensitive to the touch because of over sized blood vessels it can cause a little bit of bleeding. But, it could also be your period starting.
I would take a test or go get blood work done. Blood work is the best way to get answers because there is a 70% chance of a false negative but much much slimmer chance of a false positive.
Good luck and I hope that you get the result you're looking for.