Finished my monthly period last week and then a day or two later noticed some light spotting. it has continued for 6 days so far w bloating..why?

Many causes for this: There are many causes of abnormal vaginal bleeding. Most of the time it's just temporary fluctuations in hormones, which can also cause bloating. Pregnancy should be ruled out with a urine test if symptoms persist. If that's negative and bleeding remains abnormal, then other testing for hormonal abnormalities (like thyroid) should be done.