Pencil gender test

Cee • My name is Cee'mone I am 25 mother to an amazing baby girl name Skyla 10/11/15 born at 25weeks💝👑👣 Currenty expecting baby 👶🏾 #2 in January
Has anyone did the pencil gender test and it been accurate I did it on my moms arm and it was correct showed she had boy and girl I did mine and its saying I'll have a girl which is exactly what I want.