Pain HELP?!! TMI Some.

So I am going through it I don't understand what is going on. I am having sharp pain on my sides. And my lower stomach feels stranged. Tight and also Cramping but no bleeding Ik this is totally tmi. I am supposedly on my fertile week. And my CM is heavy right now and sort of egg white. AF is due on the 3rd. My breast also hurt and some liquid came out of them yesterday what is going on? Any thoughts?