Sayang, first things first, since you're bleeding at 7 weeks, you must keep monitoring closely with your doctor or go back to emergency if the bleeding gets heavier or you feel unwell . The good news your baby's heart is still beating, so that's a positive sign. Honestly, bleeding in early pregnancy can happen for so many reasons and doesn't always mean miscarriage, a few of us mums went through it and baby turned out fine. The fact you have no other symptoms and doc saw the heartbeat is reassuring. I know it's terrifying after TTCing for 7 years and two losses, but try to trust what the ultrasound showed today. Just rest as your doctor said, drink lots, and go back immediately if anything changes or the bleeding increases. Sending you strength, mama. Hang in there and don't hesitate to call your doc anytime you're worried, that's what they're there for.