CM Question?

I'm 33 years old and have PCOS and Endometriosis. My very 1st time ever ovulating in my life was this past December 2017 and just recently the week of the 9 through the 13 of April being my second time. So my question is since my peak day on the 13 my CM has been non stop thick 🥚🍳 every day. It will be anywhere from light to medium, like I can feel it in my underwear all the time. my period is supposed to start this Saturday, April the 28th...So my question is, is this normal? Do women normally have Thick 🥚🍳 before their menstrual cycle begins? Or could this be the beginning symptom of pregnancy? Thank you and have a blessed day!