Pregnant or period about to start?

I was ovulating on November 11th and had unprotected sex, no pull out. The past couple of days my breast have been super sore and I’ve had mild cramps start this past Monday (November 18). But they’re low in my gut and only last a couple of minutes. My period is due in 3 days. I know that can be signs of my period as well but my breast also have veins showing more than usual and my nipples have became more sensitive. Do you think it’s more pregnancy symptoms or period?