I jumped in blended adventure many years ago with my BF who has a 9yo son. 
During all those years, we had a beautiful relationship and i was close to my SS. 

Then, last year, i became pregnant.
During all my pregnancy, everything and everyone were focused on SS and his well-being. 
How will he react? What should we do to let him find his place in this new family? 
I have always been highly concerned by him, always loving, gentle.... including during this period.