Experiences?

Okay, so I have a very irregular cycle, 31-45 days, more often than not though, it stays around 33-35. Well the only time I have spotting is about 3 days after my period ends. I’m currently on cycle day 41 and I’ve been having brown spotting for 3 days, and I had one small spot of what looked like normal period blood. But that was it. I took two pregnancy tests on cycle days 29 and 33, super negative. I plan on testing again. But has anyone else had this?