God knows your heart and your husband's heart. He knows that you have been trying to have a child. He also knows the reason that it has not happened, at least not yet. Sometimes with God, actually probably always, it is all about timing. He is working and bringing things together that you are not aware of. Look at Abraham and Sarah, Isaac and Rebecca, Elkanah and Hannah, and Zechariah and Elizabeth. All of these gave birth to very special children after 20, 30, 40, 70 years of waiting. I am hoping and praying that this is the case with you. If so, you will have a special child and also have gained great insight on waiting on the Lord. If you never have a biological child though, perhaps He means for you to give the gift of a family to a child who desperately needs one. I will pray for wisdom and direction for you. God bless.