The Needle Test

So apparently my mother in law is magic, or at least somewhat psychic. She -and my sisters in law- assure me that her needle test skills are beyond reproach and that she is accurate in her predictions of the number of children you will deliver and their gender. She uses a needle on a string and holds it over the pulse point on the wrist and then interprets the twists and turns of the needle to predict.
Apparently I will be the mother to three children- a boy (working on him now), then another boy, and finally a girl.
So.... make note folks and let's see if she is right.