Leviticus 15:18-30 Holman Christian Standard Bible (HCSB)
18 If a man sleeps with a woman and has an emission of semen, both of them are to bathe with water, and they will remain unclean until evening.
19 “When a woman has a discharge, and it consists of blood from her body, she will be unclean because of her menstruation for seven days. Everyone who touches her will be unclean until evening. 20 Anything she lies on during her menstruation will become unclean, and anything she sits on will become unclean. 21 Everyone who touches her bed is to wash his clothes and bathe with water, and he will remain unclean until evening. 22 Everyone who touches any furniture she was sitting on is to wash his clothes and bathe with water, and he will remain unclean until evening. 23 If discharge is on the bed or the furniture she was sitting on, when he touches it he will be unclean until evening. 24 If a man sleeps with her, and blood from her menstruation gets on him, he will be unclean for seven days, and every bed he lies on will become unclean.
25 “When a woman has a discharge of her blood for many days, though it is not the time of her menstruation, or if she has a discharge beyond her period, she will be unclean all the days of her unclean discharge, as she is during the days of her menstruation. 26 Any bed she lies on during the days of her discharge will be like her bed during menstrual impurity; any furniture she sits on will be unclean as in her menstrual period. 27 Everyone who touches them will be unclean; he must wash his clothes and bathe with water, and he will remain unclean until evening. 28 When she is cured of her discharge, she is to count seven days, and after that she will be clean. 29 On the eighth day she must take two turtledoves or two young pigeons and bring them to the priest at the entrance to the tent of meeting. 30 The priest is to sacrifice one as a sin offering and the other as a burnt offering. In this way the priest will make atonement for her before the Lord because of her unclean discharge.
Leviticus 18:19 Holman Christian Standard Bible (HCSB)
19 “You are not to come near a woman during her menstrual impurity to have sexual intercourse with her.