Hi, I Would Like To Delay My Period For A

Hi, i would like to delay my period for a few days. The reason is not sex is about preventing bleeding out during an important match. I lose too much blood the first days of my period and my pressure drops very low. My doctor advised Primolut nor two days before my period starts. However, teammates used it before support that they had to take it at the 16th day of their cycle. Which one is the wise to do?