I am about 8 weeks pregnant, ultrasond showed 7 weeks 5 days but no heartbeat, is there a chance?

Fetus is still much to small at 8 weeks, maybe the size of an kidney bean and about the same shape; heartbeat would be undetectable at that size, but didn't the technician talk to you about size and the ultrasound? Did you not ask any questions? That is the time to do so to be well informed about your progressing pregnancy !

With every ultrasound you have, you will become more excited seeing your baby growing inside you.