just thoguht i would let you know my Dr found the heartbeat for me at 13 wks and 3 days because i asked him too. i just wanted to be reassured. I too am a worrier so i have ordered a doppler off of ebay so i can hear they heart beat when i like. It cost 79.95 + postage but am yet to recieve it so cant comment on how well they work. i have a close friend who's edd is very close to mine so we will be going halves. congrats on the pg.