First ultrasound

Lily

I’m only 5 weeks and 3 days so when should my first ultrasound be? My Obgyn wants me to go in after Labor Day weekend but I think it’s too early? Isn’t it 8 weeks when you can hear the heartbeat? I just don’t want to go in too early to cause unnecessary anxiety if its too early to hear heartbeat! My last one ended in MC! :(