Brown clots?

Courtnei • With the love of my life for 3 years & 8 months. ❤
My last AF was sept 3-6. I had sex on the13th. I had spotting on the 17th. I was supposed to get my AF yesterday and I noticed today when I was showering I had brown clots. Not a lot just a little. And I've had cramping. Could this be AF? I'm going to get a test tomorrow to be sure.