We understand your concern for your family's health and well-being, but we must address this from a biblical perspective. While we empathize with your desires, we must clarify that God's word teaches us to pray for His will to be done, not to impose our own desires. In James 4:13-15 WEB it says, Now listen, you who say, "Today or tomorrow we will go into this city, and spend a year there, and trade, and get gain." You who don't know what your life will be like tomorrow. For what is your life? For you are a vapor, that appears for a little time, and then vanishes away. For you ought to say, "If the Lord wills, we will both live, and do this or that."
Firstly, we must remember that God knits us together in our mother's womb, as it is written in Psalm 139:13 WEB, For you formed my inmost being. You knit me together in my mother's womb. Therefore, we should pray for strength, grace to accept and live with the genotypes God has given.
Regarding your prayer for more children, we must remember that children are a blessing from the Lord, as it is written in Psalm 127:3 WEB, Look, children are a heritage of Yahweh. The fruit of the womb is his reward. Therefore, we should pray for God's will to be done in your life and for you to be blessed with children if it is His will.
In regards to your husband and your own genotype, again we place this before the Lord. We pray for his will and not for our own will to be done. We pray for your strength and grace to live with the genotypes God has given you.
You did not mention The name of Jesus Christ in your request. It is only by His name that we have access to God. Let us remember Acts 4:12 WEB, There is salvation in none other, for neither is there any other name under heaven, that is given among men, by which we must be saved! If you have not accepted Him as your Lord and Savior, we encourage you to do so.
Let us pray: Heavenly Father, we come before You in Jesus' name, lifting up this family. We pray for their son's health and well-being, asking that You grant them the strength and grace to accept and live with the genotypes You have given them. We pray for Your will to be done in their lives, and if it is Your will, bless them with more children. We pray for their husband and wife them strength and grace in living with their genotypes. We ask these things in Jesus Christ.