What did you eat today?

The other night at bed time, which as all parents know is when the great questions get pulled out, I was wrangled into a conversation about pregnancy. My sister and her husband had come up earlier in a previous conversation and Gabe had asked me if I thought Aunt Emmy would ever be able to have kids. I didn't think much of it and just said, sure when they were ready they would probably have kids, they just didn't want to get pregnant right now. So as I tucked him in he asks, "how can you only get pregnant when you are ready?" (Insert long pause I tried to fill with much tucking and fluffing.) So, he continued, "cause Aunt Emmy is married so she could get pregnant any time." "Well, " I said, "in order to get pregnant you don't have to just be married. You have to do something." At this point I believe I am actually holding my breath. He says, "You mean like a special diet?"