Hi! So, I'm still getting used to sudden pms symptom, breast pain. And after my period finishes it goes away. But this time, it did stop but now, 1 week since my period my breasts started to hurt again! What can be the cause of this? I did have protected sex, but even if I was pregnant, it was 5 days ago, I couldn't possibly have this symptom that fast. What do you think breast pain after period is related to? Can it be dangerous?