Boobs

So my period is suppose to be due in 7 days but i have been having sore boobs for a little over 2 weeks. Can it be an early sign of pregnancy? I thought they hurted cause maybe i was ovulating my im not ovulating at all. Although my boobs do get a bit sore a few days before my period but this time they have been hurting longer than usual. And look a bit swollen too.