I wanted to prepone my periods for few days...in jan my cycle started frim 26th...in feb due to death in my family had lot if stess and I got my periods on 17th feb..again in march ltl bleeding started by 17th but proper flow started by 21st march n got over by 27th march..now getting married n date has fixed for 20th Apr n other functions starting from 17th April. ..my doc adviced me regestrone twice a day 3 dys prior my date. ..I m confused because I read in net tis tab is for postpone or prepone n wn shuld I start...