I am having abdominal pain and pelvic pain like when I breathe in hard and It feels crampy I delivered about a week and…

I am having abdominal pain and pelvic pain like when I breathe in hard and It feels crampy I delivered about a week and three days ago vaginally and I'm just feeling a lot pain since like a day ago I went back to hospital Friday because they left membranes behind that they had to get out and since they did that it hurts in my abdomen and pelvic even to take a deep breathe or cough or move certain way I don't know what this may b and I'm not bleeding a whole lot please comment if u had something like this and what happened cus I'm debating on weather or not I should go back to the er !! Even when I press on my stomach and pelvic area it hurts