Molar pregnancy? Debris?

Miss

I went in for my 7 week check up being 7 week 3 days pregnant the doctor seemed concerned saying I have debris in my uterus which I don’t understand what is and there was no heart beat! The ultrasound at the office seemed cloudly so we sent me to the hospital to get a second opinion ultrasound the tech didn’t tell me anything saying she can’t because only a doctor can! I have no symptoms of miscarriage but I have symptoms of pregnancy like super tender breast light cramps and extreme fatigue idk what to think waiting for my results tomorrow did any of you guy’s experience this the doctor said it could be molar pregnancy but I have no symptoms of that either! Please help