Single Parenting Support Group
Today being raised by a single parent is not uncommon. About three in ten children live in a single parent home. The most common type of single parent home is one with only a mother. However, single father homes are the fastest growing type of family situation; 60% growth in the last ten years alone.
Does he already know about the 'complicated deal' with your ex? If not, maybe that's a good place to start. If he can handle that then maybe he can one day meet your son. A couple months is really not that long compared to a life-time. You guys may still be finding out what kind of person the other one is. Does your son have a good support system? (Other men like uncles, family friends. or grandpas) who can absorb the impact if things fall apart?
Whatever you decide I hope it works out well for all of you.