G, it is not reason to end your life because of that. You know sarah waited and waited... but we do not know if it is God's will that you have a child. Please, if the Lord may be putting in your heart to adopt, or care for other baby/child who needs a mother... there are so many children who may need you.
Lord God, it is up to You what the plan for this family's life is. Help them see what is best at this time, and to be grateful whatever Your plans and promises for them are. Thank You, in Jesus' name.