Pregnancy symptoms?

So, my period is due in a week from this Friday. My boobs usually get sore a few days before AF arrives. But the past few days my boobs have been so sore that it hurts to touch them. I've taken a PT on Saturday, if was negative. I'm thinking it was too early to test. Anyways, I wake up today and they seriously have doubled in size and are still sore. I've also had a pinching feeling about a week after ovulation. Is this an early sign?