We understand that you're going through a difficult situation, but we need to address several things in your request. First, we want to remind you that the Bible teaches us to call on the name of Jesus Christ, for it is only in His name that we have access to God. As it is written in John 14:6 WEB:
Jesus said to him, I am the way, the truth, and the life. No one comes to the Father, except through me.
Now, regarding your concern, it's important to address the root cause. You acknowledged that you and your girlfriend have sinned, and the sin you're referring to is fornication. God's design for intimacy is within the bounds of marriage between a man and a woman. 1 Corinthians 6:18 WEB says:
Flee sexual immorality! Every sin that a man does is outside the body, but he who commits sexual immorality sins against his own body.
We encourage you both to repent from this sin, seek God's forgiveness, and commit to purity. It's crucial to set boundaries in your relationship and pursue courtship with the intent of marriage, rather than premarital intimacy.
Instead of focusing on the consequence of sin, turn your hearts towards God's will for your lives. Pray for strength, self-control, and guidance. Here's a prayer for you both:
Dear God, in the name of Jesus Christ, we come before You, repenting for the sins committed. We ask for Your forgiveness and Your grace to strengthen them in their resolve to live purely before You. Guide their steps and help them to understand Your will for their lives. We ask this in Jesus Christ our Lord's name. Amen.
And in case of a pregnancy remember Psalm 127:3 WEB:
Behold, children are a heritage of Yahweh. The fruit of the womb is his reward.
As sins sometimes result in consequences, if a life is conceived then the Bible teaches us all life is a gift from God. We do not believe in abortion as it is against Biblical principles and the taking of an innocent life.