I am 20 weeks pregnant, and been having a hard tim...

I am 20 weeks pregnant, and been having a hard time breathing, and sharp pains in my right side, I went to the er waited about 40 min and they never sent me to the Delivery area like they were suppose to and when I said I was going to leave to be seen at another hospital they said they didnt care and I could leave. I understand they cant make you stay but it's very disrespectful when the nurse says she doesnt care! This place needs to be fixed.