Did anyone go through the same?

Tausha • 💕Hubby and I met 6-16-12, got married 9-9-18. Our boy was born April 11, 2014, Baby girl on the way! 💕

So I've been to the doctor twice my dates are off, we're not positive how far long I am. But a week ago I went in, and just saw the sac, no yoke sac or fetal pole. So I went in again today, (a week later), and still just saw the sac. Has anyone been through the same and ended up still seeing there little bean and heartbeat? I'm really hoping I'm not as far along as I thought I was, and just not far enough to see something. When did you guys see your baby's heartbeat?