Babys first years is a pathbreaking study of the causal impact of monthly unconditional cash gifts to low income mothers and their children in the first three years of the childs life the gifts are funded through charitable foundations. The last development stage in babys first year is quite a transition they arent an infant . First year everything you have to look forward to now that you have a baby from milestones to babys growth plus tips to make life easier. By one year between six months and one year weight gain slows down a little most babies