Prolapsed uterus?

Has anyone ever had or heard of having a prolapsed uterus after childbirth? I'm 3 weeks almost 4 weeks postpartum and I have a "ball" like feeling between my legs when I walk or sit. When I wash my peri area it feels like there is a bulge down there. I've been doing kegels and following the postpartum recovery guidelines. Delivery was vaginal without complications, small first degree tear. I know it's more of an elderly thing to have a prolapsed uterus but not sure if anyone else has experienced this? I did call the OB office as my follow up isn't for a couple of weeks and they just said to continue kegels.