I have a big question... so yesterday I was having sex with my husband and he accidentally when to…

I have a big question... so yesterday I was having sex with my husband and he accidentally when to hard and he hurt me down there. So when we finish I when to clean myself and I saw a little of blood, and today I went to the restroom and when I clean myself i saw a little of dark blood again. It’s not to much not like my period or anything just maybe a drop. Should I freak out? I don’t think I should go to the ER. I’m just a little concerned because of the baby.