If you started your period on the 14th i would say your probably not pregnant and your period just came a couple days early. If your spotting and the bleeding is very light and not like a normal period, it could be implantation bleeding which happens around the time of your normal period. Id start by taking a pregnancy test. If it comes up negative and your still unsure, wait a week and take another one. If its negative again and your still concerned, call your doctor and request a blood test.
Ok, but it dont feel like a period it feel like i have a stomach virus and the bleeding is dark and flow not heavy but in between