Ultrasound question

Yoli

Did anyone here have a abdominal ultrasound and didnt see the baby only the sac?? Was there a baby on the next ultrasound? And where you weeks behind then expected?

As of today im suppose to be 9 weeks according to my lmp but went for a abdominal ultrasound and we couldn't see the baby only the sac and everything else they said looks good no bleeding but no baby look like a 7 week pregnancy