Hiya
My midwife didnt check my baby's heartbeat until i was 16 weeks. I think it can be hard for them to find it before then, think they dont like to incase they cant find it and it may worry you. I have the angelsounds doppler and found my baby's heartbeat at home at approx 18 weeks, but ive heard some ppl have found it with the doppler at 10 weeks.
Sharon x