13 Weeks.. Beta hug levels dropping

Ko

So i turned 13w today. Yesterday, I went to pee then I wiped only to find a small light pink spot, and a dime sized blood clot. So i went to the ER, .. and they did a blood test along with the beta hcg tests and found that my number went from 57,000 to 51,000 in 2 weeks. They ddint do an ultrasound. I'm freaking out because I won't be able to get into my Ob until Sep. 6, Anyone ever had this happen to them, and their baby be okay??