Light bleeding 6 days after period???

Help! I woke up this morning and had some light (almost pinkish) bleeding when I went to the bathroom. I just got finished with my normal 5 day period 6 days ago. It's now noon and I'm still having the light bleeding. Does anyone know what this could possibly be? This has NEVER happened to me before and it's kinda freaking me out! Thanks in advance for y'all's input!