The two cycles in question have been within the past year. In March, my period began on March 12, then on March 25, I had brownish spotting for about a day. My next period came on April 21, which is a 40 day cycle if I count from March 12. This past month, my period started on August 9, then on August 26, I had brownish spotting for about a day or maybe two days. then my next period just started yesterday on September 22, which is a 44 day cycle if I count from August 9. At the times when I had the brown spotting, I wondered if it might be BV because I had a slight burning sensation along with it, but in both cases, the spotting and burning went away before I did anything about it like schedule a doctor's appointment.
Does anyone here have any idea why this might be happening? I've read a bit about anovulation because I thought that's what it might be, but I'm not really sure this fits the description. I'm fairly certain that this has happened before, but at those times I hadn't started tracking my cycle yet, so I don't know the details. I've been on levothyroxine since January for the Hashimoto's, and I'm still trying to get my dosage regulated - the medication hasn't had any effect on my TSH levels yet.
Those are all the relevant details I can think of, and I'm grateful for any advice you VP'ers might have!