Postpartum sex and bleeding???

Emily

My boyfriend and I had sex for the first time since I had the baby which was 3 weeks and 5 days ago. About a week and a half ago I was in the er because I gushed blood. Turns out there was a little bit of tissue from my placenta still in my uterus but not enough to have any procedure done. Was told it would pass through bleeding and was but on an antibiotic. My bleeding has been very very very mild like I did not even need a pad but after we did it, I noticed a guy of blood and I think it was fresh blood. Now I’m bleeding a little, like period bleeding kind of? Just wondering what people think.. did I mess up by having sex too soon ? Just want opinions.