Light Spotting 2/3dpo and Expert Charters

[HappyPanda4]

This cycle is so confusing and hope someone can offer some advice. I had pos opk on cd 19 and temp spike on CD21 & 22. I thought I o'ed but when temp dropped I discarded bc our A/C was broken and temps didn't fit. When temp dropped started opks again. Pos opk CD 22-yesterday. FF gave me cross hairs today as o'ing cd 24. Last night I had very very light pink spotting and today very very light brown spotting. Cycles are usually long 34-42. Could I have gotten my ov day wrong? I have never had ovulation bleeding and don't know anything about it.


Thanks in advance!