This is helping a lot to hear the different opinions, thanks!
I think I'd like to know for sure that I could breastfeed for a full year with this baby, and I can definitely understand 2sweetsparrows' thought on wanting to have some alone time with the first baby. I guess you never can get it with the second baby, huh?!
My mom tells me she basically got pregnant with her second and third kids as soon as she started being fertile again, which was right when the first (me) and the second started weaning. My first brother is a year and a half younger than me (my mom started giving me bottles in addition to breastfeeding, which I guess she didn't do with my brothers), and then my youngest brother is three and a half years younger than my other brother (five years younger than me). She was also in her twenties when she had all of us, which could make a difference, but I know I got pregnant pretty quickly this time.
But, like MaineCoastMama, my husband also wants to make sure he's not an "old dad," and time goes by so fast!
Maybe we'll end up with twins. That'd solve the issue. (I'm hoping we don't, actually, but that's because I want a home birth!)