Quoting ----&&:" Yep with mine I was told that the reading on the screen was often inaccurate and to count it manually."
Quoting GlamChic:" <blockquote><b>Quoting LoveMyBubbaBoy:</b>" I started really low (right above the pubic ... [snip!] ... it! At first we thought my hb was the baby but after watching some of those videos I realized that the sound was different."