Making my mother death wish come true

My name is Christine. My husband and I have been trying to have a child for the last 16 years. I have fertility issues and my mothers dream was for me and my husband to have a baby together. My mother had cancer and was giving it all she had while we were trying to raise the money to have one before she passed. But in Dec right before Christmas she lost her fight. Her last words to me was to make sure I still gave her those grand baby's they would help my dad deal with her loss. All I want is to know my mother is finally happy and so are we. Anything would help us on our way of making her wish as well as ours come true thank you for your time.