Telling my boss

I wanna tell my boss today but I’m nervous because last week another girl told everyone she was 6 weeks pregnant, and she told me she was tired of pregnant people. Any tips? And she’s telling my boss she can’t do a lot of things now mind you we work in a daycare and the kids are chill. So it’s not a lot of work. I just don’t want my boss to think I’m another nuisance 😫