To reveal or not to reveal!

Deanna • Im a FTM to a baby girl born April 29 (after being told i could not have children) i plan to stay at home with her :) and im pro breastfeeding!
So we have a name picked out but i refuse to tell any of the people i know (mostly because all the girls i went to school with are also having babies and young girls can be petty) am i paranoid for hidding the name so no one steals it? We call her by her nickname M&M