Help? Has anyone experienced this?

Am

Okay so in the beginning they thought I was carrying twins but the doctor I was using kept screwing things and tests up so i switched and never mentioned it to the new doctor I’m 29 weeks now and yesterday saw my doctor and told her I kept having gallbladder attacks and baby hasn’t been moving the machine was picking up on two heart beats? My heart rate was 115bpm and first heartbeat on machine was 132 and second was 154 I’m so confused

I feel crazy now I used my home Doppler and got the same as well so I started looking at past sonograms

I’ll attach some ultrasound photos

I guess my question is what are the chances of hidden twin? Or if anyone had any experiences similar to mine?

Thanks

It looks like another face in this ultrasound pic