Late period weird spotting

anon.

I am almost on cycle day 38 they are usually 28-31 days. I started very faint light pink spotting then the next day slightly more red spotting and now brown spotting not enough to fall onto toliet paper or underwear just when I check my cervix. I tested with a cheapie and it was negative. Has anyone had this issue before? What was the outcome? If I were to be pregnant I would be 5 weeks (since first day of last period)