### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
hello doc,post delivery after a c-section on 29jan 2010 iv got periods during 8th mth of my son,since then my periods were regular ,,,last period was on jan 19 2011,,,,since then i din get periods yet,iv got both urine n blood tests done last mth but invain...so gynic gav me primolut-n 5mg thrice for 3dayz,,,till 10dyz no period,so i took duphaston-10mg twice for 5days....till now no periods its almost 10dyz now...wat cud b the rezon 4no menses even after takin so many medicnes 4 withdrawal of bleeding????do i hav still chances for pregnancy???m even on gluco[hage-500 twice daily after meals since december.....b4 my 1st pregnncy i was having pcos,sp was on glycomet-850mg for almost 8mths n mny periods wer regular while i was on it,n by god s grace i even conceived as soon as i joine dmy husband here in riyadh,,,after delivery all my ovaries wer alright der wer no cyst...now in frb i went thru lot of stress as my mom had a new lif,,,cud dat stress b d rezon,,but how long will i ndt get periods dis is 1st time dat even after taking medicnes m not getting my periods,,,,m i pregnant??? or watz d rezon plz help as i want anoder baby as my son is 15mths now

### output:

Hi, thanks for query. Pregnancy seems unlikely. As your blood test and urine test are normal there is no reason to worry. Please discuss with your doctor about possibility of thyroid disorder. As you ultrasound is also normal major things are ruled out. Please keep patience and keep regular follow up with your doctor. At times due to some hormonal imbalance and high amount of stress this can happen. Wishing you good health.