Periods can be delayed by taking oral progestogens like norethisterone and medroxyprogetserone. Deviry contains medroxyprogetserone. You have not indicated the strength of the tablets which you took I think you took under dose of Deviry tablets. Dose of medroxyprogetserone in postponement of periods is 1 tablet of 10 mg 2 times a day starting from the 5-6 days before the expected date of periods.
