My boobs have been sore for 2 wks and they feel weirdly harder than usual...could i be preggers?

Ok so I'm 27 so I obviously know my body. My boobs have been killing me for two weeks plus...sore sitting there, sore laying on my tummy for sleeping, for sure sore to the touch. I have been working out a lot lately (but mostly cardio cause I'm trying to lose first-so its not like its my pecs or muscles being sore...THIS IS MY BOOBS) LOL So I would think and at first they seemed to be getting smaller...right on track w me losing weight. But they feel huge and heavy. My boobs are already ginormous so I know when I can feel a change. So tonight I am sore and I was sorta feeling them and they also feel harder than normal and its different from anything I have ever felt before. Like I said I know my body pretty well...also I get mild boob pains during pms but its never been like this and for so long...and the only time I have ever had pain like this was when I was trying a new birth control and that was years ago. I'm not on the pill currently, and yes I have had sex recently...we used protection but there's always that chance. Anyone else have this? Do you think I'm pregnant? Sorry so long..but to me this is serious.:) thanks :)