Leviticus 12:2 "Speak to the children of Israel, saying,'If a woman conceives, and bears a male child, then she shall be unclean seven days; as in the days of her monthly period she shall be unclean. (See NAS RSV)
Leviticus 12:5 But if she bears a female child, then she shall be unclean two weeks, as in her period; and she shall continue in the blood of purification sixty-six days. (See NAS RSV)
Leviticus 15:26 Every bed whereon she lies all the days of her discharge shall be to her as the bed of her period: and everything whereon she sits shall be unclean, as the uncleanness of her period. (See NAS)