Word of advice have them 5+ years apart, my cousin is going through it with her 3 year old and her newborn, I had my children almost 6 years apart and I couldn't ask for a easier set up, my some is in 1st grade and he doesn't require alot of attention because he's going through his "big boy" phase and he understands that his sister is a little baby, the only thing I would say about having a boy and a girl is the boys are super overprotective well my son is at least he loves his little sissy