6weeks just sac 9weeks same thing

Yayoo

Hello I went to the doctor supposedly 6wks and 6days but when I got my ultrasound it was only a sac . I was scheduled to come back 2 weeks later ... same thing just a sac at 9wks . The ultrasound tech is telling me I have miscarried and I am very heart broken . Has this happen to anyone ? This is my first pregnancy and I was so excited to be a new mommy .