Bleeding around the sack???

Natasha
Okay so I've been so stressed because I have no idea what's going on!!!
Tuesday night I sneezed and I was soaked in blood, I went to the hospital straight away they gave me an anti-dee shot, and moniter me for a few hours then sent me home? The next day all this blood and clots were just gushing out of me I couldn't even put on a pair of undies with a pad on because they were getting soaked , so I went to another hospital and I got an internal ultrasound and apperantly there's a bleed around the sack , the baby's okay and their heart is still beating, but she said it's siting abit low. 
They sent me home after that? I have no idea what's going on and what to do or think? 
Has anyone experienced this before? Or something like this, I need answers and clearly the doctors arnt telling me nothing :(