I had my last period on 29 march to 1 april. And this month my estimate date of period is 25 april but I want to delay it for 5 days as I have to attend a friend's wedding. I had been suggested to take one regestrone tablet daily till the date I want to deal my period. I have taken regestrone 5 mg tablet yesterday night. Will it work 100% .Pls tell me if I am taking ghe correct medicine to delay my period till date 29 april. Also suggest me the usage. Thank you.