from the Novena for the Protection of the Unborn:O Heavenly Father, Creator and Giver of all life, Author of Justice, Source of love and mercy: Although it is deserving of your anger and punishment, look with mercy on our nation which has offended you by condoning the killing of millions of innocent children, Thy precious sons and daughters, who, like all of us, were created in your image and likeness, and whose only offense was their very existence. Amen.
O Blessed Lord Jesus Christ, Our Redeemer, whose inestimable gift of self-sacrificing love provided the means of Salvation for all mankind through the shedding of your innocent blood: grant that all may come to know you, serve you and love you, and thus may know the meaning of true freedom and true liberty which never destroys, but always serves and protects life. Amen.
O Holy Spirit, source of wisdom, knowledge, understanding, counsel, fortitude, piety and holy fear: inspire us with these gifts. Fill the hearts of the leaders of this nation, especially those who have the temporal power and the grave responsibility to make and interpret and execute laws, with the desire to do God's Will, to restore justice and to establish laws which govern the people of this land in conformity with the Divine Law -- laws which will preserve, protect and defend the lives of all sons and daughters of God, from their earliest beginnings until death. Amen.
O Mary, Mother of Jesus, entrusted to be the mother of God's only-begotten Son, Our Savior, through thine obedient consent to God's Will, and who thus became for all people and all time the model of faith and of the self-giving love and devotion of Motherhood: take into your motherly arms all the babies who are victims of abortion that they may receive eternally the comfort of a mother's love. May your example and intercession open the hearts of all who reject God and His holy laws, comfort all those who suffer remorse because of abortion, and restore to hope in Christ those mothers and fathers who grieve and repent the killing of their children. Amen.
All Angels and Saints: may your guidance and example show fallen humanity the way to perfect joy and freedom and peace found only in unity with God in obedience to His Will through Salvation in Christ Jesus; and may your constant prayers be joined by those of all the little children -- the "slaughtered innocents" -- as a "cloud of witnesses" interceding for sinful man. Amen.
From these three sources, perhaps you can put together your own choices of prayers.
A novena is a name for prayers that are said for nine consecutive days.
Please pray for the protection of the unborn.