I just have one, a daughter who will turn (gulp) 15 next month.
I was only 18 when I had her, so in a lot of ways, we've grown up together.
People ask me all the time if my boyfriend and I will ever have a child of our own, and for a while, I thought maybe we would; however, we've both decided that isn't in the cards for us. We are really happy with our little family, just the way it is.