*trigger HPT* Odd cycle..... Help

christina
Ok so this is supposedly cd 6 after a 33 day cycle. I got a 3 day period day 1 light day 2 medium-heavy day 3 spotting. Now its day 6 and i am having brown spotting when i wipe, a little crampy, and breast pains. Im not sure how i could've even gotten a faint line today but i did. Anyone else experience this?