Needle and Thread Test

Has anyone done the needle and thread test , when you put it over you hand and if it goes in circles then it's a girl and if it goes back and forth straight it's a boy ... well my boyfriend and I did it twice and when I was pregnant and it said we were having a boy then a girl ... well I had a miscarriage last month so yesterday we decided to do it again and now it says we're having Boy Boy Then Girl FOR THE BOTH OF US... it was the exact same for us before and now it is Again ! It's like it knew I had a miscarriage. Who else has done this ?? I find this really creepy 😳