At ER ... So worried

Woke up in severe pain having cramps and vomitting and diarreah rushed to the ER to see what was going in There... Got to see my jelly bean and see its little heart flicker and see that it was weirdly moving well her (we're hoping for a girl) only for them to tell me cramping is a sign of miscarriage and that they will check my levels I'm so worried about my little person in there. Like omg I'm almost 8 weeks not stressed I'm young this is my second after 7 years just worried...