I have a 28 day cycle but it can vary 1-3 days. My period is usually a couple days early or on time. Very rarely late. I have been tracking ovulation since cd7 as instructed and for the last 4 days I have been getting a flashy smiley face which is great but now it's cd 16. I was meant to ovulate on cd15 according to my apps. I've ran out of testing sticks and I feel as tho if I purchase more I'm going to continue to see flashy smiley face and waste my money because these tests are expensive. I have all these questions in my head as in maybe I didn't ovulate this cycle or my lh surge was missed or was too low. Do you think I could get the cheap ovulation tests and see if they show me if I'm ovulating? Everyone says good things about clear blue but as of now I don't know what to think.