Leviticus 15:19
And if a woman have an issue, and her issue in her flesh be blood, she shall be put apart seven days: and whoever touches her shall be unclean until the even.
Nave's Topical Index—AKJV

Leviticus 18:19
Also you shall not approach to a woman to uncover her nakedness, as long as she is put apart for her uncleanness.
Nave's Topical Index—AKJV