Chinese gender calendar ?

Kelly
Ok soo I'm
Due March 2nd 2016 and I've been looking up old wise tales gender test .. 
I found the calendar and I was very surprised to find out that it was accurate .. 
my last to boys it showed male 
so u look up the age u were when u conceived and then the month 
My first son I was 19 conceived sept it said male 
Then my second son I was 20 conceived dec it showd male 💙💙 
Then when I look know 
I'm 22 conceived jun said female 💝 
I'm hoping for a girl .. all the old wise tales point to girl :)) do anyone else believe in them and if the calanedar was accurate for you?