On the overpopulation thing: It is mine (and my family's) firm belief that it just makes sense to reproduce twice. Then your effect is net zero, you are replacing yourselves and yourselves only.
Mom didn't mean to have me too!
You and the RB will have to figure this part out yourselves. But if you'd like a reality check, take some nephews or something for a week - one whole week - and see what it's like. That still won't be a real feeling, because real parents do it gradually and the kids will be on overdrive from excitement, but it'll be a hint of that other reality.
Other than that? I can't tell you. I'm still deciding for myself! Mostly, I find I want to someday... because I want to teach and grow and share with a little sponge. Besides, what I really want to do is direct! (Meaning, I have so many ideas on how to raise a kid... I ought to just do it myself and stop mentally chastising my friends and relatives.
)
And don't decide this summer. Maybe next summer. :*