Cervical Mucus and Ovulation

Miranda
I'm currently on cycle day 13 and Im having creamy cervical mucus. My OPK is still negative. When do you ladies ovulate? I have PCOS and Ive been taking PregPrep Conception complete which includes FertilPrep and VitaPrep. My doctor also has me on metformin. I also took Provera to start a new cycle a couple of weeks ago. Someone help? BBT has also been in the 98s the past couple of days.