What Causes Thick White Vaginal Discharge With Nausea And Cramps In The Morning?

Hi, have today I noticed myself experiencing white thick cottage cheese consistency cervix lie mucus. This has NEVER happened to me before. At least not to this thickness/consistency. Been trying to get pregnant. Period should be next week but I am not experiencing any period symptoms i usually do a week before. I am however constantly hungry. It is a weird feeling, I will finish eating then my stomach will ache as if I am hungry. I also wake up in the morning with cramps and sick. Could I be pregnant?