My wife hates kids?

Hello community,

Just got married about 5 months ago (I am 34M, wife is 37F). Now, most of our friends are announcing that they are expecting a baby and my wife's reaction has almost been envious or bitter.

She's been telling me for a while that she doesn't want kids, but she's always the one bringing it up. Whenever we have a conversation about any random topic, she says "that's why we shouldn't have kids".

Most recently she said she will delete our neighbour off of social media because she cannot stand her baby posts.

Is there anyone in here that has an idea of what's going on? Do you recognize yourselves or anyone else in this?

Best, E