Has anyone done this or think it works? My mother in law swears by it and says it is always accurate? Basically lay flat on the bed and hold a threaded needle above your belly as still as possible. After a few seconds it will either start to go round in circles or go up and down from head to toe. Circles apparently is a girl, head to toe is a boy. I have done it 5 times now and every time its circles but i don't know if i believe old wives tales to be certain lol x