Pls help

Hi hi everyone. I took pictures of my 4 months of my period. But now I seem 2 be late. I did 3 test I think last week.. 2 were negative then both layer had a faint line. Then I did one on Sunday last week. It came up negative.. Maybe I ovulated later then I thought. But what do u guys think? 🙈 Pla pls let me know I think it's like cycle 36 still no period and I always get mine every month.. Even tho on different days. Many thanks guys I also put a Pic of one of the test that was negative then later had a faint line