So I always experience light spotting of 1-2 days 1-2 weeks before my period starts but this month I did have my light spotting on wed July 15th my expected period is supposed to be on thru July 30th but I keep spotting every other day thru July 23, Sat July 25th and today July 27 I'm positive is not my period and this has never happens to me before what do you guys think it could be???