I add my prayers to all the above. You don't mention how old your son is, but from a very early age, teach him to "talk" to Jesus. Kids love imaginary friends and usually believe they are real (an example is Santa Claus). Before all the information you want to give him, help him develop a prayer life in its very simple form.
God bless you, keep loving your husband, and praising the Lord that He is in this family of yours. Thank Him for His promise to you in Isaiah "All your children shall be taught of the Lord, and great shall be their peace". Isa. 54:13 At the end of the chapter it says that this promise is the heritage of the righteous - and you are righteous in Christ.
Joi