HELLO SIR,I am married since 2013 14th feb...and i was taking Dronis 20 since 2014 January,i was taking from the 2nd day of my periods and stopped after 21 days and then again started from the second day.so in july i was having my periods just after 15 days of the last periods date cause i missed my 2 days Dronis 20 and after that i had periods.when i went to doctor mam gave some test ,i did all the test everything was normal..then doctor gave me Regestrone Tablet 5mg 2 tab after lunch and 2 after dinner for 21 days...she told me after 21 days i will get periods and after that i can continue with Dronis 20 as i was taking before.... but 21 days finished on this July 27 and till now i am not getting my periods ... so am worried is there any chances of pregnancy??because we are not ready to have a baby now....and my 2nd question is what is the proper dose of Dronis 20 when to start and when to stop??if i stopped after 24 days and my periods will have after 4 days then is there any chances of getting pregnant on that 4 days????