Hi, I m going on holiday next month the 20th of march, I am due my period that same day. I ve taken primulut n before to delay my period, as you can imagine I do not want to have it for my holiday... But I ve forgotten how or how many days to take before my holiday. I am only going for 3 days so I can stop taking it after the 23rd of march. Any answer would be appreciated thanks, Sara .