I've found this book called: The Jewish Pregnancy book; 'A Resource for the Soul, Body & Mind during Pregnancy, Birth & the First Three Months', written by Sandy Falk, M.D., and Rabbi Daniel Judson with Steven A. Rapp.
Within this book there is this lovely prayer, and I wondered if there is a Hebrew version of this and wether it is usual to say such blessings.
The prayer upon discovering the news: We stand breathless before the Power of Creation that works through us to bring forth new life. We tremble with fear and joy.
Deep inside me a seed is growing. I am afraid, and I am filled with ecstasy. May this promise of life come to be – our child.
We trust in the source of life, this power which grips us within and yet transcends us. Protect this fragile new beginning. May we find love and strength to nurture this gift of fertility and life. Sheltered under wings of love, may we grow to be partners with the source of life in the miracle of creation.