HELP HELP!!

Elizabeth
Hi any comments that can help calm me down, im currently 6 weeks 3 days pregnant. I havent had morning sickness yet but i dis have twnder breast,tiredness and heartburn but 3 days ago all symtoms disappeard. Im trying to stay calm but im thinking it might be a misscarrige? Im calling my OBGYN in the AM but any comments of what xan be happening to me?