Just remember moms of twins and triplets do it all the time. I usually have 2-3 12 months olds depending on the year since I dont' take them once they start school. Looking more and more like I will have 3 starting this summer between June and Sept. First couple weeks are rough till you get the swing of it down. Ideally try to allow about 3 weeks between start dates so it gives you time to get a feel for the needs of each one but don't panic if they start the same time. You learn to do things in tandem and get pretty good at having a tray of dishes of food and three high chairs in front of you and feeding each one a mouthful from their dish when necessary. They also learn to wait and you will learn which ones wait the best and make your own decisions that way as to who goes into bed first, gets fed first, eats enough a few cheerios to tide them over won't be a problem till you finish feeding another child.