Iam 8 Weeks Pregnant And Last Week I Have My

Iam 8 weeks pregnant and last week I have my first Ultrasound the doctor said fetus have no heart beat. Today morning time I have small amount of bright red tissue discharge , the it stopped and there were no more bleeding.The Dr. office schedule me after a week to see what is going on again they said they need a second ultra sound to find out if the fetus developed or dead. Iam really very worried because it take me 18 months to conceive while I got pregnant on 6 cycle of Letrazole. Iam 37 years old. all of those symptoms means Iam going to loss my baby?