I think the OP has a very good reason to abstain, at least from brewing for a while. Although, having a beer after the baby goes to sleep probably isn't out of the question.
I go through phases. Right now I'm considering why I brew. Lately, it just hasn't been fun to have beer when no one else is around (pretty much most nights since I'm single and live alone). So brewing and having a bunch of beer in kegs isn't really making a lot of sense to me right now. I don't often have people over, everyone is too busy with their families anyway. So when I drink it's usually somewhere else. Sure, I take growlers, but it's not too often. Drinking a bunch of beer by myself kind of used to be fun; I could play whatever music I liked, eat, drink and be merry. But it's lost it's lure (and that's probably a good thing). Now I'm starting to think...well, I could brew beer, have it sit around in kegs not getting drank [by me] or buy the occasion 6/12 pack or something and enjoy and just have coffee on nitro and carbonated water on tap. The reason I say that is because I really kind of haven't felt like brewing lately either...maybe it's summer/heat/whatever...who knows. I'm sure I'll come out of this on top.