I’m not in any pain just bleeding and I had no tearing
Get it checked out just in case, but personally I’ve bled after sex (with or without an O, and masturbation if I finish even if there’s nothing used internally) ever since I started birth control (continued even after I went off it, stopped while I was pregnant, started back up pp, stopped again while I was pregnant, and again pp).
Are you in any pain? I wonder if you had a little tearing? I did with my first baby.