Until I met my husband, I was really fine with the idea of never marrying and never having kids. But when I met my perfect guy, all of a sudden, my biological clock engaged! So... I'm starting later than you, but my plan looked something like this:
Age 29 - marry
Age 30 - baby #1
Age 33 - baby #2
I turned 31 the other day, so I'm already behind. I want to be done with my baby having by the time I'm 35. My desire for kids hasn't changed - I'd still like two, but I'd be so grateful for just one. And if a third one inserted itself into the picture, I'd be thrilled with that, too. I'm willing to take things one baby at a time.