Hello dear, I understand your concern. In my opinion spotting alone is not sufficient to diagnose pregnancy. But the presence of pregnancy should be definitely ruled out when there is abnormal period like spotting during the periods time or delayed period with irregular bleeding etc. So I would like you to do a urine pregnancy test to check for any pregnancy. If the test is negative the spotting can be considered due to hormonal imbalance. So avoid stress if any as stress is the common cause of hormonal imbalance. If the test is positive then the cause of spotting like hormonal abnormalities of thyroid or progesterone insufficiency or any signs of miscarriage should be checked. If the test is negative and this irregular spotting or bleeding continue every month then the cause of irregularity like thyroid abnormalities,stress etc should be checked. Nothing to worry. Kindly do a urine pregnancy test. Hope this helps. Best regards...Dr.Srilatha