when did your period come back after birth?

SO and I had rough sex today. 4 weeks and a day after baby was born. I had a third degree tear. I thought I was never going to heal. My sex drive is over the roof. Had sex yesterday everything went great then today I bled bright red no pain had my husband check to see if I tore while he was looking I bled a good bit on the bed.. And in the toilet seriously looked like period blood. Could having rough sex make my period come early? I've been cramping all day now worse since we had sex. When I wipe not as bloody just tiny bit now. What are your thoughts? Baby's one month check up is tomorrow I'm going to ask if my period could come back early. Google says like months until flo comes back. But I feel so crampy before I got pregnant I didn't like sex.. But now I can't get enough of it. We've only had sex twice and I feel like I'm wearing the hubby out! Might sound crazy but I love condoms I have a problem of dryness and the condoms keep me nice and wet.