I'm 7w1d now and I can't help but always think that something is off. My husband wants to tell the world, and I'm a little more guarded until we reach 12 weeks and see the little bean again. My first sonogram measured 2 weeks behind, but since I'm irregular sometimes, they said it was fine. Couldn't hear a HB (6weeks at the time) but they were still able to track a HB and it measured at 116, which she said was fine.