work!!

so i just started a new job a month ago this is my second job my first one has known i am pregnant for about 2 months but my second job does not i work with mostly men and i’m nervous for them to find out i’m pregnant any advice i have no idea how to tell them i do everything i’m supposed to do and more with no issue so it should matter any advice should i tell them or should i not tell them i am 6 months