I got this blessing from somewhere on the internet four or five years ago - can't remember where. I like it because of the many types of mothers included in the blessing - it is a very pro-life blessing. I have adapted a bit for my use.
MOTHER’S DAY BLESSING -
God, our creator, we give you thanks for the many gifts you have given us, for the gift of life and for the gift of those who love us. We thank you today for the gift of our mothers and grandmothers.
We give thanks for those mothers and grandmothers who have passed away, for the unique way they have revealed your love for us. We ask that you to continue to bless them and keep them in your care, until the time comes for us to join them in your heavenly kingdom.
We ask your blessing upon the mothers and grandmothers who are unable to be with us here today. May they know how much we love them and care for them.
We pray for birth mothers who have loved their children so much that they've shared the gift of their child with those who could better care for them and their needs, giving them a secure home.
We pray for adoptive mothers, that they may always know their special role as true mothers and as a revelation of God’s love for all his children.
We ask your blessing for mothers who have lost children in many different ways, that they may have your continued strength and courage.
We ask your blessing upon those who would very much like to be mothers, but who are having trouble having a child.
We now ask your blessing, Lord, upon these mothers and grandmothers gathered with us here today. Give them the strength to follow the faithful and loving lives you call them to live. Let them know of the love and gratitude of their children, grandchildren, and our parish community. Protect and guide these mothers and grandmothers. Keep them in your care.
May almighty God bless you – Father, Son, and Holy Spirit.