Thank you for consulting HCM.
If you have any doubt about pregnancy
you need to consult your doctor for a scan to know whether you are pregnant or not they may also check your hcg
levels in your blood.And if it is still negative and you didnt got your periods then there might be some infection from which it may result in irregular periods
as you will go to your doctor they will do some more screening tests and cofirm the cause.Thank you.