46 and no kids. When we first got married, we wanted kids and tried for a very brief time because, well, that's what "everyone did". But then we started actually talking about it, and our personalities, and the practicalities of raising kids, etc., we decided that unless we were totally "over the moon" about having kids, we probably shouldn't. We confessed that we were both in the "meh" category about having kids.
We both like kids (we're the cool aunt & uncle), but we tend to like things peaceful, orderly, and without any stress, and kids tend to be anything but that! So, no regrets for us, it was the right decision.