If there has been a regular bleeding each month, even if it had been scanty then it's your menstruation and unlikely that you would be pregnant. You may rule out pregnancy with a urine pregnancy test now to allay your anxiety.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.