Hey , The problem is that after intercourse blood was gushing out of my vagina and I thought that I had periods so I wore a sanitary napkin , in the morning I checked but there were no blood stains for the next two days , also to mention that I took an emergency contraceptive a day after intercourse , However just after the intercourse blood started gushing out of my vagina and from the next day it completely stopped , can you tell me the reason for this ? Is it just periods ? Or an internal injury ? Because my lower abdomen and thighs are slightly paining. Please reply as soon as possible.