My ultrasound came!!!!

These aren't recommended to use at home.

You could provide yourself with false reassurance and/or worry yourself unnecessarily unless you're a trained professional and know what you're doing, what you're listening for etc.

I'd personally return it.

I got warned if I do get one I may hear my heart beat instead of the babies but if you know where you baby is and you know what to listen for go for it xx

You’re unlikely to catch the baby’s heartbeat at 8 weeks with an at home doppler like this one. I also have one and will try it closer to 12-13 weeks. I think I was around 13 weeks when I first heard the heartbeat when I was pregnant with my son. Make sure you get some gel if you don’t have some already