Last year one of my husband's friends was visiting from the US and we'd been married for about 8 months. He literally pointed at my body and said something like, "What's all this then?" and I asked him what he meant and he said, "Come on, why aren't you pregnant yet?"
We'd only just started trying and I'd had one miscarriage and one unsuccessful cycle.
So at first I fobbed him off politely, saying that we had plenty of other stuff to think about, like our home renovations.
Later I took him and my brother and sister in law (who have never asked us about our plans for children) to see the new flat and when I was explaining what we were planning to do with it I said we were going to turn a bedroom into a dining space and he said, "Oh no no no, I don't like that idea at all! You need to keep the maximum number of bedrooms for all the children you're going to have!"
So at that point I told him to knock it off, and said it was really rude and inappropriate to say things like that, and he laughed and said, yeah I know it's really annoying, my mother is always asking me when I'm going to have children and it's just the way isn't it, she asks me, I ask you, everyone does it!
So then I said no, everyone doesn't do it, and it's really not the same for you since you're a man and you're single and you live in the states and your mother lives in Abidjan, and even if it were the same thing, if you find it annoying that's all the more reason not to do it to anyone else!
Anyway, I told my husband to have a word with him, and later that evening he came up and apologised, by which point I was a bit drunk and I just said, look, you don't know what is going on in people's lives when you ask that question, they might have been trying for ages, they might have been told they're infertile, they might have just had a miscarriage, they might not be ready, they might never want kids and basically it's none of anyone else's business and if and when we have something to tell you, we will.
I hope to God he got the message because I've now had three more miscarriages since then and if he brings up the subject next time I see him I will go fucking batshit.