C.R.
Your kids are going to look at you for how to react...they are small and won't understand the depth of what is going on, so if you are sad they will be sad if you are upbeat and positive then they will be too. You can (pretend if you must) be excited about all the new changes...You guys are so big you get to go to school now(daycare)....you will have 2 special places to sleep(2 homes/joint custody)...play it up as new and fun not heartbreaking...My sister went through a divorce 2 years ago with 3 and 5 year old girls...they(the girls were excited to have 2 bedrooms) and my sister and her ex get along well they just weren't "in love" anymore...everyone has adjusted wonderfully and as a huge surprise to me the girls never really asked why or were upset....everyone stayed positive and the transition was smoothe...I'm sure there will be questions when the girls are older but if you keep the fighting and emotion out of it(easier said than done) it doesn't have to be horrible...I am sure there are a ton of books out there to help you...best of luck, I'm sorry you are going through this.