No. You should have it in the few days before O and maybe the day of O. It's normal to have disharge throughout your cycle, but the majority of it is not considered fertile.
Just a thought, are you sure its CM and not semen? I got these two confused once, the way to tell is if its semen and is emersed in water it will seperate but if its eggwhite CM it will stay the same and not seperate at all.