Garbhadhana

Garbhadhana (Sanskrit: गर्भाधान, Garbhādhāna) (literally: attaining the wealth of the womb) is the first of the 16 saṃskāras (sacraments, rites of passage) in Hinduism.

Garbhadhana is a composite word of Garbha (womb) and Dhana (attain, wealth), and it literally means attaining the wealth of the womb. It is a private rite of passage, marking the intent of a couple to have a child. It is a ceremony performed before Nisheka (conception and impregnation). In some ancient texts, the word simply refers to the rite of passage where the couple have sex to have a child, and no ceremonies are mentioned.

Scholars trace Garbhadhana rite to Vedic hymns, such as those in sections 8.35.10 through 8.35.12 of the Rigveda, where repeated prayers for progeny and prosperity are solemnized,

प्रजां च धत्तं द्रविणं च धत्तम्
bestow upon us progeny and affluence

The Vedic texts have many passages, where the hymn solemnizes the desire for having a child, without specifying the gender of the child. For example, the Rigveda in section 10.184 states,

विष्णुर्योनिं कल्पयतु त्वष्टा रूपाणि पिंशतु । आ सिञ्चतु प्रजापतिर्धाता गर्भं दधातु ते ॥१॥
गर्भं धेहि सिनीवालि गर्भं धेहि सरस्वति । गर्भं ते अश्विनौ देवावा धत्तां पुष्करस्रजा ॥२॥
हिरण्ययी अरणी यं निर्मन्थतो अश्विना । तं ते गर्भं हवामहे दशमे मासि सूतवे ॥३॥
May Vishnu construct the womb, may Twashtri fabricate the member, may Prajapati sprinkle the seed, may Dhatri cherish thy embryo;
Sustain the embryo Sinivali, sustain the embryo Saraswati, may the divine Aswins, garlanded with lotuses, sustain thy embryo;
We invoke thy embryo which the Aswins have churned with the golden pieces of Arani (firewood), that thou mayest bring it forth in the tenth month.

...
Wikipedia