I feel like I'm going crazy

Here are some pics within a few days.

I got a well what I think is a faint line (the first test is an ovulation) ill post more pictures down below

Then I looked two days later and the line is gone and i took more tests and nothing my periods are very irregular last month I had one on the 14th and the previous month was the 7th I'm just so confused and upset. I feel like I'm waiting for something that isn't there/isnt going to happen. Opinions?