<s>[INST] Hi, i have regular cycle which is 24-28 days.  Now, its day 38 but i still dont have my period.  I went to the OB today and the urine test says its negative.  She prescribed duphaston to be taken twice a day for 7 days.  She says the reason that i still dont have my period yet is due to hormonal imbalance.  I am still confused because ever since I got my period at the age of 12 and now im 32,  i have a regular period.  This is the first time that my period was delayed.  My husband and I are trying to conceive for the a year already.  please help clarify things for me.  I am also scheduled to take an xray as required by my new job.  My OB said its safe to get an xray as Im not pregnant.  Should i wait for 1 more week and take a preg test before taking the xray? [/INST] helloThanks for your query. Once in a while, it happens that periods get delayed for no reason (mild hormonal imbalance).stress, anxiety, travelling and change of place, weight loss, thyroid hormone problems, polycystic ovaries etc. also can cause menstrual delay. Yes, I would ask you to wait for your periods in fact, before taking the x-ray, as sometimes, delayed conception might occur. Finish the course of phaeton, and if you do not have with Chat Doctor. All the best. </s>