Oh, and I should ask are you seeing an OB? Or just a regular doctor?
Your doctor isn't a very good one if it wasn't the FIRST thing he did running a blood test on you, if he thought you were pregnant. If he thought you were pregnant he should've given you a pee test, then blood if he thought that was off, a repeat if necessary, then an u/s, and then the H/B. I can't imagine him listening for a H/B of something he doesn't even know is there. There's such thing as a phantom pregnancy, where your body tricks you into thinking you're pregnant, give you symptoms, all sorts of things. At 16 weeks, it's not too early to see a full baby, hear a H/B, etc.
i heard my 1st baby's heartbeat at 6 weeks
I agree...I heard my babies heartbeat at 8weeks. If you were pregnant the pee test would have came back positive by now...hopefully you get your answers soon or find another doctor.
Doctor said it was to early too... and so did sone of the women on here too