Doctors can do a Fetal Cells Analysis in Maternal Blood. This can be done at 10wks and results are in by 7 days after....I've heard lots of women getting it done...no harm to mother or baby
I tried Chinese calendar and it said girl but I go for my ultrasound the 3rd I don't really believe in those things but I was bored so I tried it lol I wouldn't buy anything tho waste of money. Good luck