PICTURES BELOW!

My general question: Is it normal for your ovulation tests to fade, get darker, fade again? (I know that it’s negative unless the color is as dark or darker than the control line) but is it supposed to gradually get darker or be all over the place like mine are?

My background:

I was on the depo shot for about two years, my last shot was in June/July of 2017. So around 1 year and 7/8 months ago. While on the depo shot, I didn’t have AF at all, occasional spotting, but only when I wiped. When I got off of the shot, it took about 3 months to get AF. AND MAN DID I GET IT. I bleed EVERYDAY. It would be only a few, if that; days out of the month that I wouldn’t bleed. Most of the time it would be spotting so it was SO ANNOYING! Just here recently in the last two or three months has it been getting more regular. I will post a picture below of what my last cycle has looked like. I had AF for 10 days instead of like 30. I am just hoping that I am even ovulating.. Mid cycle around the 23 I started to spot bleed. I’m not sure to count it as a period or not either.. it lasted for a few days (less than my last af though). At first glow was saying I ovulated around the 22 or so and now it’s moved all the way down the month, each time I put my opk in. I’m not sure what to do. Any tips or advice?

P.s that last opk is still wet but was taken within the 5min time frame.

Also, I believe all the check marks are the days that I spotted.