My parents had me in their late thirties.

Sometimes I'm a little sad that I won't have as much time with them as I would if they'd had me when I was younger.

But it was the right choice for them, and ultimately better for me. They were stable in their thirties in a way they weren't in their 20s. If I'd been born earlier they would have had to take care of me in grad school and we would have had to move every few years. And there would have been a huge financial strain. My mother probably would have had to give up her career, which would have been hugely unfair to her. I'm glad that I didn't cause them so much stress and problems, and I'm sure my childhood was better for it.