I am popping in from the Dec. Mommy group. I have been there too. I have 14mo between my first two and 13 mo. between my third and fourth. I found it easier the second time around b/c they were better sleepers. I let my first sleep with me too much and Dh would have to lay by her crib and hold her hand until she fell asleep. So get that worked out and nap time!
I like that mine are close-they play pretty well together. I know you must be in shock right now. Hopefully Dh will be helpful.
I found a double stroller to be a big help when going out and about. of course you probably know that already. GL and best wishes.