Confused🤷🏽‍♀️

Hoping someone can help. I started my period on the 10august and it finished on the 15august I was suppose to start 2 weeks before this but they came late and didn’t think much of it, I was just sitting and decided to take a test as I have been feeling for tired than normal and feeling sick a lot and the test came back positive is this even possible for this to happen.