I agree with you all.
mg - you shouldn't have to explain yourself to anyone, no matter what their past experiences were. You are ready to have a baby when you believe you can offer that child love, support, and a happy home. People get to that point at different points in their life.
I've known plenty of people who had babies while still in school. Most during graduate school, but still in school. I think the stigma is very different for women than for men. When a woman has a baby right before comps, others say that she is crazy and she won't be able to handle it. When a man has a baby right before comps, others say they hope he can get out of the house for some peace and quiet. I think the subtle difference is the assumption that a man only has to turn his back and he's unaffected, but a woman is taking on too much to be a mom and a student at the same time.
BTW, my second anniversary is May 7th. My birthday is the following week, too. I warned my husband about getting married so close to Mother's Day. It will always be hard to make reservations for an anniversary dinner on the weekend around our anniversary.