No symptoms. What does that mean?

I don’t feel any symptoms of having a period nor pregnancy. Typically, my breast are sore before I even get my period and now, It isn’t sore. My period is due on the 31st but I still don’t experience any symptoms. I had sex on the 18th, 22nd and 28th and he cummed inside me in all those. And still no signs of period nor pregnancy. What could this mean?