'Conception' in the Bible

Unto the woman he said, I will greatly multiply thy sorrow and thy conception; in sorrow thou shalt bring forth children; and thy desire shall be to thy husband, and he shall rule over thee.

Onan knew that the child (heir) would not be his [but his dead brother’s]; so whenever he lay with his brother’s widow, he spilled his seed on the ground [to prevent conception], so that he would not give a child to his brother.

So Boaz took Ruth, and she was his wife: and when he went in unto her, the LORD gave her conception, and she bare a son.

As for Ephraim, their glory shall fly away like a bird, from the birth, and from the womb, and from the conception.