Leviticus 18:19

Never have sexual intercourse with a woman while she is unclean during her monthly period.

Leviticus 15:24

If a man has sexual intercourse with her while she has her period, he will be unclean for seven days. Any bed he lies on will become unclean.

Leviticus 20:18

If a man has intercourse with a woman during her monthly period, both of them are to be driven out of the community, because they have broken the regulations about ritual uncleanness.

Leviticus 15:19

When a woman has her monthly period, she will be unclean for seven days. Those who touch her will be unclean until evening.

Ezekiel 18:6

and does not eat at the mountain shrines or lift up his eyes to the idols of the house of Israel, or defile his neighbor's wife or approach a woman during her menstrual period;

Ezekiel 22:10

Some of them sleep with their father's wife. Some force women to have intercourse with them during their period.

Leviticus 12:2

Tell the Israelites: 'When a woman gives birth to a boy, she will be unclean for seven days. This is the same number of days she is unclean for her monthly period.

Treasury of Scripture Knowledge

Summary

Also thou shalt not approach unto a woman to uncover her nakedness, as long as she is put apart for her uncleanness.

Bible References

General references

Leviticus 15:19
When a woman has her monthly period, she will be unclean for seven days. Those who touch her will be unclean until evening.
Leviticus 20:18
If a man has intercourse with a woman during her monthly period, both of them are to be driven out of the community, because they have broken the regulations about ritual uncleanness.
Ezekiel 18:6
and does not eat at the mountain shrines or lift up his eyes to the idols of the house of Israel, or defile his neighbor's wife or approach a woman during her menstrual period;
Ezekiel 22:10
Some of them sleep with their father's wife. Some force women to have intercourse with them during their period.