Spotting?

Becca • T.D.G.💓 Living a life full of happiness.☀️

I started my period the 20th of February and it ended about the 25th or 26th. I had sex the 26th. I woke up yesterday morning and noticed I was spotting; I woke up this morning and realized it was a little more than spotting; almost like a light flow. Should I worry?