I am my husband's second wife and he has 2 children. We married when I had a lot of money invested in mutual funds and all of his money was sunk into the house that we ended up living in. I have no children and don't intend to have any. The short story is that our financial situation when we married was very complicated. We did not do a pre-nup, we simply went to a lawyer and figured out what we wanted and put that into a will. I don't know if that helps but it worked well for us.