I had unprotected sex with my girlfriend around 10pm on  7 may 2016, at about 9am the following day I bought her postinor 2.... And she took the two tablets once...  Then at about 11pm I had unprotected sex with her again, do I need to buy contraceptive again????
Hello,Thanks for posting your query. When 2 tablets of Postinor are taken, the second one is to be taken exactly 12 hours after the first one. The protection offered varies depending on the time interval of pill intake after the intercourse. The pill effect is shown to remain for 5-7 days in the blood. You need not have to take a second course as there would be enough protection. Please remember that the pill use should be restricted to one or two occasions per year to avoid hormone imbalances. Regular contraception is the better alternative. Hope this helps.