Yup, I picked up the HB at about 12.5 weeks. I'm positive I could have picked it up earlier though had I been looking in the right spot. I'd tried to hear it since 11w but I had been searching too low (which apparently is quite uncommon as most people usually search for it too high!). Early on in a pg you're supposed to find the HB right above the pubic bone/hairline but I actually found it just over an inch above there! But maybe my uterus/bub is just sitting higher than average... my OB said today that the top of my uterus is at my belly button already!