Feeling confused 🤦🏻‍♀️

So, I was <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> with opks and I made sure to BD with the hubby the day the test came out positive and two days after that. However, I was looking at my calendar on glow and it says I had a higher chance of conceiving the day before my opk was positive, but I did not BD. Does it matter? Or am I good with the 3 days that I was able to BD? 😫 also, the test I took before the day it was a definite positive it was darker than all the other tests, but not as dark as the positive one. I hope I make sense 😭