I didn't hear the heart beat until my 13th week...so it may just depend
I just entered in 6th week when my doctor found the heart beat in ultrasound.
I got to listen to the heart beat at 6 weeks so you just might
My doctor did an ultra sound at my first check up and I got to hear mines heart beat. They didn't do the heart beat monitor until I was closer to 20 weeks each visit where I could hear it and they could get a reading.
I heard my baby's heart beat at 6 weeks
Probably too early, but who knows...