Stephanie,
I'm so sorry you had to be hit from all sides at once. Just having a LC diagnosis is enough to send anyone into a tailspin. But with your own dx, I just really feel the pain your going through.
You do need to feel there is hope though.
I also have a best friend who is my daughter (age 27), getting married next month. My son's wife just gave birth (3 weeks ago), to my first grandchild. Just like you, they decided not to wait for that baby. And believe me, it was the best gift they could have given me.
Even though I'm also stage IV, I have to say this last year has been one of the best in my life. I know that sounds pretty weird, but in certain ways, it's true. My dx has enabled me to spend the time with my loved ones that I wouldn't have otherwise and to enjoy each and every second of every day. Medicine has also come a long way and every day they are coming a little bit closer, even if only by prolonging our lives.
So, don't dispair, even with your dx. Enjoy every day and just make sure you get the proper care for your mom and yourself. Second opinions are really important.
Well, I think I've rattled on enough. Best wishes and welcome.
Joan