Thanks for the query.
If you crossed your expected date of periods go for blood test
Which will rule out the possibility of pregnancy.
If test comes negative, you can go for general checkup and get investigated for: hemoglobin
, blood sugar levels, blood pressure, thyroid
profile and any other investigation suggested by your doctor after examination.
With this primary workup the cause for your problem can be possibly identified and treatment can be given.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429