I can understand your concern. The spotting is most recent yet can still be associated with the pill.
Although you will have to rule out other causes for the same like: fibroid uterus
, polyps, endometrial abnormalities, hormonal
imbalances, etc. I would advice the following investigations:
-Transvaginal scan (TVS)
-Hormone level check
-Vaginal swab test
Hope thesse investigations will help in finding the exact cause for the spotting. Wishing you lotsbof luck.