My future father-in- law is thrice divorced, and now has a girlfriend he has been with for a few months who is pregnant (and will still be pregnant at our wedding). This unborn child will be FH's half sibling. Do we include his father's girlfriend in our formal family photos? Future father-in-law is not engaged or married to this woman, but since she is carrying FH's half sibling, we aren't sure if we are obligated to include her in our family photos. I'm considering having just one of her + FIL + us, but don't know if she should be in the larger group ones, etc.