Tradition and verse — not medical advice
The Beginning
Shown in author's own English -- not a translation we made.
"Where have I come from, where did you pick me up?" the baby asked its mother.
She answered half crying, half laughing, and clasping the baby to her breast,-- "You were hidden in my heart as its desire, my darling.
You were in the dolls of my childhood's games; and when with clay I made the image of my god every morning, I made and unmade you then.
In all my hopes and my loves, in my life, in the life of my mother you have lived.
Heaven's first darling, twin-born with the morning light, you have floated down the stream of the world's life, and at last you have stranded on my heart.
As I gaze on your face, mystery overwhelms me; you who belong to all have become mine.
For fear of losing you I hold you tight to my breast. What magic has snared the world's treasure in these slender arms of mine?"
In plain words (ours, not the poet's): when a child asks where they came from, their mother answers that the child had lived in her heart, her hopes, and her love long before being born.
Why public domain: Tagore wrote The Crescent Moon in English himself, first published London 1913. US: pre-1929 publication, public domain in the US. Tagore died 1941; public domain in India (life + 60 years) since 2002.