I am a Russian Orthodox Christian, and I know other Russian Orthodox Christians who consider a woman's menses to be impure. As a woman, this monthly bleeding is not saying that I am evil or bad during that time. I am simply not pure. Here is a good explanation of this.
However, I know we Orthodox Christians plan our weddings around the bride's menstruation cycle, because she should be completely pure at that time.
Do other Christian denominations do this too?