Why is it that when you're young, married, female, and childless, people think it's ok to ask you (a) if you're pregnant and (b) when you plan to start having kids??
My team at work is about 1/3 female. As it happens, all the women are young, married, and have no children. One of the women recently announced that she is pregnant.
Yesterday, a group of us went to lunch, and out of the blue, one of my male coworkers asked one of my female coworkers, "So, when do you plan on having kids? My guess is a year, tops." She just sat there. A few seconds later, he apologized and said, "Sorry, that's a personal question."
A few minutes later, another male coworker joined us, and completely independently, he asked the same woman when she planned on having kids. Then he turned to me and asked me when I plan to start having kids!
I waved my hand as if I were going to slap him. What I should have done, is ask him when
he plans on having kids.

(He's single.)
As if I don't get enough of this from my mother-in-law