Well my husbands grandmother decided she was gonna tell us what we were having today (she's 87 and I'm only 6 weeks). So she does the needle and pencil things on my wrist. It came back a girl but wasn't as strong as she liked it to be so she said I might not be far enough along yet. She said she would try again in a month.  Has any one ever had it done and was it accurate for u?