In this journey it's easy to discount or disregard what God says when His promise doesn't manifest right away. We have a vision/idea in our minds of when/how we're supposed to get pregnant and expand our families; so when things don't go like we think they should we panic and begin to doubt.
I believe one of the most amazing ways God comforts He daughters on this journey is by sending Sweet Reminders. Sometimes they come in the form of a dream. Sometimes they come through a song or sermon. And sometimes the encouragement comes from another person.