Training kittens for new baby?

K

Ill be 35 weeks tomorrow and Im getting kinda worried about my 2 cats being around my son.

Theyre both boys, brothers, and 13 weeks old. Absolute disrespectful assholes, I swear. They climb on everything despite my efforts and "yell" at me when they dont get their way. Theyre really vocal, which I love about them but theyre both so defiant. One is more relaxed than the other but still a dick.

Ive been trying to teach them that certain items aren't theirs but they dont give a shit. Ive raised many kittens before but not while expecting a baby. Im not sure how to go about it.