Bright red blood: The first day of the menstrual cycle is also the first day of your menstrual period and that is the very first day you observe bright red blood. Brown spotting is not considered a menstrual period. - See more at: http://www.babymed.com/menstrual-cycle/when-is-the-first-day-of-my-menstrual-cycle-period#sthash.ZXRAjC7f.dpuf
Answered 8/27/2014
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