Confused

I'm a first time mom and I'm 3 weeks postpartum, I didn't tear or need stitches, I stopped bleeding about a week ago and I have no pain anymore either. But all day I've had A LOT of discharge, I've had to change my underwear 3 times, I just went to the bathroom and when I wiped, there was a lot of mucus looking discharge and some blood. Is that normal? Sorry if this sounds dumb, I'm just new to this and I had a rough last 6 weeks of pregnancy with preterm labour, a lot of trips to the hospital and fetal monitoring so I've been over thinking a lot and just want to make sure nothings wrong