I m 19 years old. my expected period cycle days are 30 days. now it is the 37th day and i didn t get my period. i m taking regestrone 5 mg from 36th day two tablets a day as per my doctor prescription. When i check internet about regestrone, I have a doubt that whether regestrone pre-pone or postpone periods? i need to have my periods as it already 7 days late. can i take regestrone to get my period?