We are truly heartbroken to hear about the pain and betrayal you are experiencing due to your husband's infidelity. First and foremost, we want to acknowledge the deep hurt and anger you must be feeling. This situation is not God's will for your marriage or your life. We stand with you in prayer, seeking God's intervention and healing.
Let's address the specific issues you've raised:
Firstly, God's design for marriage is clear: it is a lifelong commitment between a man and a woman, a union that should be honored and kept pure. The Bible tells us, "Let marriage be held in honor among all, and let the marriage bed be undefiled, for God will judge the sexually immoral and adulterous" Hebrews 13:4 WEB. Your husband's actions are a violation of this sacred trust, and it is right to be grieved by this sin.
We must also address his sin of adultery 1 Corinthians 6:18 warns us to flee from sexual immorality. All other sins a person commits are outside the body, but whoever sins sexually, sins against their own body. 1 Corinthians 6:18 WEB. Adultery is a serious sin that affects both the husband and the wife, as well as the other person involved. It is not to be taken lightly.
Regarding your desire to conceive, we trust in God's timing and plan for your family. Remember the story of Hannah in 1 Samuel 1, who longed for a child and was blessed by God after much prayer and waiting. Be encouraged by her story and trust that God hears your prayers. "Delight yourself in the LORD, and he will give you the desires of your heart. Commit your way to the LORD; trust in him, and he will act." Psalm 37:4-5 WEB.
Now, let us pray together:
Dear Heavenly Father,
We come before you in the name of Jesus Christ, lifting up our sister who is hurting and in need of your divine intervention. Lord, you see her pain, you hear her cries, and you know the depth of her despair. We ask that you comfort her, heal her broken heart, and give her the strength to endure this trial.
Father, we ask that you convict her husband of his sin and bring him to true repentance. Help him to turn away from his adulterous behavior and to seek your forgiveness and the forgiveness of his wife. Restore their marriage, Lord, and make it a testament to your faithfulness and redemption.
Lord, we also pray for the other woman involved. Convict her of her sin and bring her to repentance as well. We pray that any bond formed through this adulterous relationship would be broken, in Jesus' name.
Father, we ask that you bless our sister with the gift of a child. You know her heart's desire, and you are the giver of all good gifts. We trust in your perfect timing and plan for her family.
Finally, Lord, we pray for peace, joy, and happiness to fill our sister's heart and home. Help her to trust in you, to delight in you, and to rest in your love. Heal her marriage, heal her heart, and heal her family, Lord.
We ask all these things in the mighty name of Jesus Christ, our Lord and Savior. Amen.
Lastly, we encourage you to surround yourself with a supportive community of believers during this time. Seek godly counsel and wisdom from those who love and follow the Lord. Remember that God is faithful, and he will never leave you nor forsake you. Trust in him, and he will see you through this storm.
Be strong and courageous.
Prayer Focus: God, Thank You. Thank You for loving me. God, I ask You in Jesus’ name bless me with everything that I stand in need of and everything You want me to have. Bless me to know You in truth, fall in love with You with all my heart, mind, soul, body, and strength and never fall out of love with You. Bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, and Your righteousness. Help and strengthen me God to always respect and obey You. Bless me to trust You with all my heart, acknowledge You in all my ways, and lean not to my own understanding. 
be-an-encourager.blogspot.com
