Prettywoman
It seems he wants to communicate.
You have to think about how you feel about that. At some point you will have to speak to him and tell him about the babies - he has a right to know. But first maybe you should think about his possible reactions and what your boundaries will be. Don't forget that you have had time to address your emotions regarding the death of one baby and the joy of watching the other one gain strength. It is quite likely that all this will knock him for a loop and you would know better than I about how he might react.
Avoiding this issue isn't healthy. Waiting until you are ready to deal with it is healthy. Only you know where you stand with this.
My hugs and prayers go out to you, and I know that your heart will tell you when it is time.