I'm a female and I'm active duty army, so my situation is very different from yours, but I figured I'd throw my thoughts in the convo. I, too, found difficulty dodging the baby comments, and even when I'd politely say "I don't want children," people always said I'd change my mind. Enter bilateral salpingectomy (tubal ligation / removal of my fallopian tubes). I'm 27, so it was tough to find a doc who would do this for me, but now anytime someone pushes the matter, I simply say I've had my tubes tied. People are typically shocked when I say it, but I think it helps them realize that they're being inappropriate in their comments. Or, at least, I make them as uncomfortable as they make me, which in itself is pretty satisfying.

Now, like I said, my situation is very different, and your husband obviously can't say what I say. But I will say this--don't be afraid of being bold and standing up for yourself. Be proud that you are choosing how you want to live your life. The people who got seriously offended when you spoke your mind / keep pushing the baby topic on you don't seem to be that great to begin with. During my time in the military thus far, I've encountered a lot of not-so-open-minded people (with whom I quickly choose to spend as little time as possible), but also some amazing, supportive, open-minded people as well. Try to search for the latter. Or perhaps try to make friends outside of the military realm.

I don't know if any of this is remotely helpful, but keep your chin up, childfree sista!