The only thing I'm worried about is a healthy pregnancy, a normal labor and delivery and nursing. I've only had small bumps in the road with my first two and I personally find the first year easier than the second in some respects (easy to meet their needs, clean butt and quick access to boob and they're happy :LOL). I've been ready to ttc#3 for awhile so I'm good in that respect and since ds will be three when the baby is born I think he'll do pretty well. My dd was 2y3m when ds was born and things were really great buts she's more independent than ds. Ds is much more independent just in the last couple of months and thankfully he's already potty learned (with accidents, but I'll take it) so I'll only have one in diapers this time around! 
