how many days spotting before period is normal
The most common causes of spotting a week before period are irregular period and implantation bleeding. A normal menstrual cycle can last for about 28 days and a regular period may last for 4 to 7 days.If you have an irregular period, the menstrual cycle may be shorter or longer than 28 days.So menstrual bleeding or spotting may occur at different times each month.mplantation bleeding usually occurs a week or so before periods are due. Menstrual bleeding is red in color, whereas implantation bleeding can be pink or brown in color. It is not a proper flow, but restricted to spotting, which can last for a few minutes, 1 or 2 days at the most.