Hi,
I'll be 40 when I get married. This will be my first marriage, and I have no kids, just two furbabies. 
My fiance has one son who will be 14 next month. He lives with him fulltime and only sees his mom maybe once every two months.
I know this will be a HUGE adjustment for me as I'll be transitioning from being childless and immediately becoming a mom. I'm sure there are some of you out there who have been in this situation. Any advice or help you care to offer?