I finishedcmy period a week ago, i continued to spot for 4 days, then i was good no spitting for 4 days, now im spotting again, what coukd be wrong?

Breakthrough: This sounds like a hormone imbalance or breakthrough bleeding. Sometimes this occurs because estrogen and Progesterone (your 2 female hormones produced in ovary) are not in the right balance to each other. Sometimes it's due to pituitary or thyroid issues. And lasly, sometimes due to weight (too thin/heavy). If bothers you can consider birth control pills to help regulate. Best of luck.