What's going on?!

Hey ladies, this post will have a little TMI moments. Last cycle I got my period three days early. My period is always on time like clock work. In this cycle, on cycle day 9 my boobs started hurting and it is now cycle day 21 and my boobs haven't stopped hurting but have gotten worse with each day. I am also experiencing a lot of CM. It is a creamy consistency. My question is, do any of you have cycles where your boobs hurt throughout the whole cycle?