Leviticus 20

More today on sexual regulations, along with some prohibitions on worshiping other deities and consulting mediums/spirits. The only new thing that stood out to me here was that having sex with a woman during her period is so strongly rebuked; presumably even if that woman is ones wife. I really wonder about that, as it makes so logical sense to me - but then I suppose God doesn't have to conform to human logic. This seems especially odd, though, since earlier we were just told that this made someone unclean until the next morning. I'd be very interested in any comments or insight readers might have on this subject.