What in the world!

Tee. 🌸 • A college student striving for greatness!
Hey Glow friends. A little question. I had protected sex on August 8th and ended up getting a period August 22nd. I haven't had sex since then. I am expecting my period, but when today I wiped it was really light. Not spotting. I don't think. What could that be? Should I even be concerned about pregnancy?