Trying To Get Pregnant

Hey y’all ! I was just wondering if there is anything I can do to increase my chances of becoming pregnant. I recently stopped my birth control pill about 3 months ago so my cycles are starting to become regular. I always try to use the app to see my possible ovulation day but I can’t seem to get it right. I am not good at following my CM. I also bought ovulation tests but I’ve only used it twice and both times they told me I wasn’t ovulating. I know it requires more than two times to keep track but it seems like it’s very difficult to get in tune with my body during ovulation and it’s stressing me out. I go to the gym about 4 x a week , eat healthy , take vitamins and rarely drink. This month I told myself I was going to really focus and try to keep track of my symptoms, take my temperature regularly in the morning, and put on my calendar when to start testing for ovulation. If anyone has some tips it would be greatly appreciated !