I'm presuming it is managers/boss that is asking you - not just gossipy work colleagues? You obviously don't feel you are being discriminated against or harrassed. I assume you'd say as much.

Personally I don't think ANY workplace - big or small - has the right to ask what your intentions are for another child. And you certainly shouldn't feel under any obligation to tell them. I understood your comment that they're not being mean or negative ... but still. Why ask you? If you have another baby, presumably they'd have approx 5-6 months notice to plan and budget.

And while their questions could be to do with budgeting, but it wouldn't be unheard of for a company to deny a woman a workplace opportunity (be it a position upgrade or further training) because she's either pregnant or planning children. I'm not suggesting your company would do this to you, but it certainly does happen. Trust me.

I understand you're sick of dealing with curiosity - and it's totally up to you to tell people what you want to tell them. You need to feel comfortable at work, and not pressured to divulge all the details of your life. Your home life is competely separate to your work life. Might be a different if you work with some close friends, obviously. But if these people are strangers then no, your life or how you conceived your child is NOT their business. Would they tell you these details? If you're copping it from colleagues, is it worth saying something to your boss or manager.

I just don't think it's appropriate for any manager/boss to ask you what your plans are. And if that's where the questions are coming from, then I'd play your cards close to your chest. Just sounds "on the nose" to me.

The main thing is that you feel "safe" and "comfortable" in your workplace.