What is the difference between spotting and menstruating?

WHEN A WOMEN IS SPOTTING, SHE HAS VERY LITTLE BLOOD. IF SHE IS PREGNANT, ANY BLOOD DROPS OR FLOW LIGHT OR HEAVEY BLOOD WOULD BE CAUSE FOR IMMEDIATE MEDICAL ATTENTION. WHEN ONE IS MENSTRUATING, THIS WOULD BE A NORAMAL MONTHLY FUNCTION, EVERY 28-30 DAYS. THERE WOULD BE A FAIR TO MODERATE FLOW OF BLOOD, REQUIRING THE USE OF PADS OR TAMPONS. IF THIS BECOMES VERY EXCESSIVE, THERE MAY BE A NEED FOR MEDICAL ATTENTION OR CONSULTATION . THE FLOW DOES VARY FROM ONE PERSON OR ANOTHER. IT USUALLY LAST 3-5 DAYS AND WILL GO FROM HEAVY TO LIGHTER IN THAT TIME. OFTEN IT MAY BE ACCOMPANIED BY CRAMPS. THIS ALSO VARIES WITH INDIVIDUALS. MENSTRUATION STOPS DURING PREGNACY.