I am POSSIBLY 5 days late for my period (I have an irregular cycle 28-35 days), and I was completely thrown off by my ovulation symptoms this month, so there is definitely a week difference in which I ovulated. Anyhow, within the past couple days I have begun to have intense breast tenderness, soreness, PAIN, whatever you want to call it, and they have definitely become a lot fuller. Today is the worst by far. I usually have breast tenderness before my period, but not to this extent. I put a sports bra on because I needed the extra support, but the tightness of it made them a little more painful, that's how sensitive they are. There is a tingling sensation too. Has anyone else experienced this? Is pregnancy breast tenderness different from pregnancy breast tenderness?