I'm 5 wks 5 days and they still haven't heard mine said it was nothing to worry about that everything was measuring up like it should and that I come back in 2 weeks and it should have one
I was around 12 weeks. but my doctor still had a hard time finding it. just here recently he hasn't had any issues. its different for everyone, my daughter is just stubborn.
@mrstaylor, yeah they were saying it's pretty early to hear a heart because because everything is still developing