I HAVE REGULAR PERIODS (24-29) DAYS. I USE NFP. DO NOT TAKE ANY MEDICATIONS. ABOUT 5 MONTHS AGO I STARTED HAVING MY PERIODS WITH REALLY LIGTH RED BLOOD (ALMOST ORANGE) I DO NOT HAVE ANEMIA... BESIDE THAT I BLEED LESS, BUT IT IS STILL GOOD AMOUNT. I AM 36 YEARS OLD. I AM WORRY BECAUSE IT IS DIFFERENT THAT BEFORE.