Pregnancy cramps or period cramps??

I was really feeling hopeful this month with light cramping during the tww and my breasts have feeling a little sore with doesnt typically happen before my period. However, yesterday and today my cramps have been getting stronger and more often which feels a little discouraging since I'm approaching AF in about 3 days. Could they still be early pregnancy symptoms or most likely just period cramps?? I know it's hard to tell a difference..