Pregnant?

The first day of my last period was December 19th, I was supposed to start my period this past week but I’m two days passed the last day that I normally have my period, there is still five days we’re I could still have a “possible period day” but so far there have been no signs of it coming besides some cramping and I’ve been discharging a lot more than usual..

I’m scared and I don’t know when I should take a test I figured I’d wait until the 31st to take a test?