Sampasadaniyasutta 5.3

5.3

Idha, bhante, ekacco asampajāno mātukucchiṃ okkamati; asampajāno mātukucchismiṃ ṭhāti; asampajāno mātukucchimhā nikkhamati. Ayaṃ paṭhamā gabbhāvakkanti.

Firstly, someone is unaware when conceived in their mother’s womb, unaware as they remain there, and unaware as they emerge. This is the first kind of conception.