What is the reason you don't give up?

Krystle • Married...Mommy to my Beautiful Munk Munk 7/22/15 ♡♡
Do you ever feel like just giving up? Like your scared you'll never get to hold that beautiful baby you have been picturing all your life....Like maybe it's just never going to happen.....For all those TTC after so long, how do you have the strength to keep trying. What thought or thing or hope do YOU cling to, to never give up???? Just looking for some great words or whatever from some of the ladies that have been trying and trying....