How often do you use it, and how long does it take you to find the baby's heartbeat? I got mine on Weds, and have used it a few times already, this morning I had more trouble finding the HB. I thought it was going to help aleviate some anxiety, but maybe its just the opposite!
Re: If you own a doppler...
I have a Hi Bebe doppler. I found the hb at home around 13 weeks. I use it about every other day. Sometimes I find it right away and sometimes it takes a few minutes.
Try not to worry about it. The baby is still very small and moves around a lot. At my 12w appt which was at 12w2d, my OB couldn't find the hb.
My situation seems to be rare. I've been able to find my LOs heartbeat since 9 weeks and I can find it everytime within 5 seconds. Since 13 weeks, as soon as I set the probe on my tummy I can hear the heartbeat...like LO is just waiting to play...and then sometimes LO swims away and I have to catch him/her.
Like I said, my situation seems to be rare, don't fret about the doppler. Try again later with a full bladder and pull your legs up so your heels are behind your butt and your knees are in the air.
My doppler says right on the box to wait til your 14-16 weeks. I actually got it in the middle of my 15 weeks. Only had one time where it took about 5 minutes to find the hb. Other than that, it works great for me. Find the hb everytime within a minute. But my baby has been staying in the same spot too. Haha. My SO and my MW were totally against the doppler just for the stress factor. But I still like to use it and hear LO whenever I please.
Good Luck!!