Despite any difficulties you might experience during those first few months, you will surely see the beauty of having another baby. It might hit you when you watch your two children together: Now that your oldest has a sibling, you are no longer at his beck and call, feeling pressure to play whenever he pleads.
You will also be overjoyed by the sweet interactions between your children. The more the new baby responds to her big brother or sister, the more engaged the two will be with one another. Siblings will sometimes develop their own language and games that you're not even a part of.
Another upside of adding to your family: You're an expert now, and you can kiss all that constant questioning good-bye. You've already taken one child through infancy and know what's coming with sleep, feeding, and setting limits. If you're nursing for the second time, you'll probably find that it's easier getting the baby to latch on correctly.
In addition to being less anxious, you may also appreciate your second's babyhood more. With your first child, you so often can't wait until he hits major milestones -- when is he gong to crawl, walk, talk, you constantly wonder. But now that you know how quickly time passes, you're more likely to savor the stage your child is in rather than anticipate the next big thing.