Hi,am married age 30,my wif age 25,hav 1year baby,during sexual intercourse sperms spreading outside of condom,so i tought there s chance to enter sperm into ovam to get pregnant,we want to prevent pregnancy,so i bought duolution l tablets,it has totally 21tablets,in this postcoital contraception,my wife take 2 tablets after 13 hours From sexual intercourse,Here after how many times? and how much tablet? and how Many time interval want to take duolution l to prevent pregnancy?