I am a 30 years older married woman who is facing some sort of problem into menstural cycle. We do sex on almost daily basis but always use rubbers or birth control pills. What happened at the time of my mnestural cycle that was something bizzare. Can you believe it, One Day Period, it was unbelievable for me. I went for pregnancy test but that shwed negative. I wish to ask from those who have ever witnessed such a kind of One Day Period, that what is it all about?