Possibly Prego?

Kristin • 18 years young⚓️ Mommy to the most amazing lil man.☺️ In love with my best friend.
In September I bled from the 4-9th then from the 25-28th. I've been having unprotected sex since after the first time I bled in September. I haven't bled this month at all except I've had a very small amount of spotting that was brown. Could I be pregnant?