I had Sex last night with my boyfriend for the 4th time, and I had never bleed on the last sexual intercourse we have had just recently last night, I did not have any pain of any kind, I didn't even feel like if i was bleeding, until my boyfriend ask if i was bleeding because he saw blood. When i got up to check, i was bleeding and it was on the sheets and it was a big blood stain as if i had got my period but i finished about 5 days ago and im worried if i should go get a check up or what to do? Or why is the reason for the bleeding?