Suggest Treatment For Sharp Vaginal Pain During Intercourse

Yesterday I was having sex with my fiance, and he went a little too deep for comfort and i had quite a sharp pain. After, when I went to the bathroom, there was a very light blood (light pink on the toilet paper). That happened twice that day, but today, we had intercourse and no pain, no blood. This is worrying me because we are trying to have a baby and it doesnt seem normal to bleed during sex, even if it is a little.