Question about sore boobs

Megan
My breasts have been hurting since ovulation, but it's been fairly mild. Last night as I was trying to sleep, they started hurting like crazy. I curled up on a ball clutching my boobs, and tried to move to another position, but every time I moved, the pain got worse. I took some Tylenol, and the pain went away enough for me to sleep. Today, I feel some slight tenderness, but nothing like last night. This is my first month off birth control, so I'm not really sure what to expect from my period, but glow predicts I'm 2 days late. I had a negative cheap-o pregnancy test. Was that pain just a freak thing? Does the pain come and go like that in early pregnancy? Should I buy a more expensive pregnancy test? Anyone?