ur baby still v small its too diffecult to find the heart beat by ur own
I got one too and it has to be extrmemly quiet there is alot of background noise, but i can hear movement and a faint heartbeat im 18 weeks im waiting a lil longer...don't worryim sure you will hear something soon!
does it say anything about that in the paperwork?
most of those devices advise you to wait a certain amount of weeks before using it so you can hear the heartbeat.. I'd check the instructions first, they're all somewhat different.
it shouldn't be. but babys still really small so that could be the reason. also baby can be wiggling around and you may not be able to find it. if your really concerned call your dr. but sometimes those machines are tricky!