Threatened miscarriage with heart beat?

Brittany

I went to the ER today for moderate red bleeding and mild cramping; they did a transvaginal ultrasound which showed I was right on track (7 weeks) and baby had a heart rate of 135. Does anyone have positive outcomes like this story? I’m afraid I’ll go back next week and there will be no heartbeat or I’m going to miscarry in the next several days