We understand your situation and the concerns you have, but we must address this in light of biblical principles. Firstly, it's important to acknowledge that life begins at conception, as indicated in Psalm 139:13-16 (WEB): "For you formed my inmost being. You knit me together in my mother’s womb. I will give thanks to you, for I am fearfully and wonderfully made..." Praying for a miscarriage is asking for the end of a life, which goes against God's commandments.
In regard to your relationship, we encourage you to strive for purity, as 1 Thessalonians 4:3-5 (WEB) tells us, "For this is the will of God: your sanctification, that you abstain from sexual immorality, that each one of you know how to possess himself of his own vessel in sanctification and honor, not in the passion of lust, even as the Gentiles who don’t know God." It's commendable that you and your significant other are working on resisting temptation. Remember, God is faithful to provide a way out when we are tempted (1 Corinthians 10:13).
Let's pray for strength, guidance, and God's will to be done in this situation:
"Dear Heavenly Father, we come before You in Jesus' name, lifting up this young woman and her unborn child. Lord, we pray for strength and courage for her, as well as wisdom to make decisions that honor You. We ask for Your protection over her and her significant other, that they may grow in purity and holiness. Lord, we know that every life is precious in Your sight, so we pray for the well-being of this baby, that Your will be done. In Jesus' name, we pray. Amen."
We encourage you to trust God with your future and the future of your child. He has plans to give you hope and a future (Jeremiah 29:11). Consider reaching out to local Christian pregnancy centers for support and guidance during this time. Lastly, we noticed you did not mention the name of Jesus in your prayer. It's important to remember that it is through Him that we have access to God, as it is written in John 14:6, "Jesus said to him, “I am the way, the truth, and the life. No one comes to the Father, except through me."