I got attacked

So today I was home in the kitchen eating ,and someone rings the door bell and my fiances grandpa opens the door and lets in my fiances ex girlfriend/baby momma. She goes in and starts talking crazy making up stuff about me talking bad about her . So we go outside so we could talk it out and I all told her was I never talked about you and she and her friend starts hitting me and punching me in my stomach. I kept on telling her stop im pregnant and they didnt stop ,my fiance tried to stop them from hitting me and all of a sudden a dude starts hitting my fiance. I Called the cops made a report ,now Im at the emergency room praying that my baby is ok. Im only 10w3d😢