Nothing is Impossible with God. His Name is El-Shaddai (the all-powerful, all sufficient God). What He did for Abraham at 100 years of age and Sarah at 90 through His Covenant Power He will do for you today. It is never too early or to late for God to do a miracle.
Abraham and Sarah were at their weakest point in their lives when God introduced Himself to them as God almighty (El Shaddai). (Rom. 4: 18 - 20).