My native language is Vietnamese. And In Vietnamese, when you say
She bombs a lot when she is pregnant (saying in Vietnamese ways).
It literally means "She farts a lot..."
Would "to bomb" mean "to fart" in English?
To bomb isn't normally used that way, but there is the expression
drop a bomb 3. (Britain, slang, euphemistic) To fart. Let's say you're at school and you accidentally drop a bomb in class. Try coughing or dropping a book to cover up the sound. - 2004, Bart King, Chris Sabatino, The Big Book of Boy Stuff, page 129
It's not normally used in the plural, though.