boobs

Alexa
So the past year or so, my periods became EXTREMELY irregular. Sometimes I got 3 months without a period then I get two in one month, etc. Regardless of how long the period is or how heavy the flow I always seem to get the same excruciating pain. ANYWAYS, I haven't had a period since January, I am sexually active but take the pill at 8 a.m every morning and for the 4 days I'm off my pill plus a week, I make my boyfriend use a confirm and none have ever broke. The past two- three weeks I've noticed my breasts are very tender (which I've never had happen before), my nipple itself has little white dots and they are enlargered (again the NIPPLE, NOT the AREIOLA). Can someone please give me information as to why this may be occurring, I don't think I'm pregnant but it could be possible. And I have a gyno appointment on Tuesday, should I mention this to her?