PCOS and Ovulation

Erika
Good morning everyone! So I've been doing the basal body temperature every morning and have been taking opk around my "estimated" ovulation day. So with my basal body temperature if I wake up slightly because husband has to use bathroom or for whatever reason I haven't been testing because I usually just fall back asleep and will take my temp once I'm awake and about to get up...should I start taking my temp the first time I'm awaken? Also how accurate is the glow ovulation predictor? Tomorrow is my estimated ovulation day with 31.4% chance of getting pregnant, but when I took opk this morning it was low fertility! I have yet to see a smiley face yet which is disappointing!! Any insight is greatly appreciated!!