Early Pregnancy symptoms or PMS?


For the past few days, my breasts have been sore. Starting last night and throughout today, I've been nauseous. I'm due for my period early next week. My husband swears my nipples look a bit darker than normal. My best friend convinced me to take a pregnancy test tonight, which came back negative, but it was an early test and not my period time yet. Could I actually get my hopes up that this could be it or do y'all think it's just PMS? Or even possibly me getting sick with something?