en_tn_lite_do_not_use/mat/01/18.md

This begins an account of the events leading up to the birth of Jesus. If your language has a way to show a change of topics, you should use it here.

Mary was engaged to marry Joseph

"was promised to marry" (UDB) or "was committed to marry." Parents normally arranged the marriages of their children.

before they came together

This euphemism means "before they had sexual relations." (See: rc://en/ta/man/translate/figs-euphemism)

she was found to be pregnant

"they realized that she was going to have a baby" (See: rc://en/ta/man/translate/figs-activepassive)

by the Holy Spirit

The Holy Spirit had enabled Mary to have a baby.