Is It Advisable To Take Gynaecosid Post Unprotected Sex?

Hello, please i had an unprotected sex 5 days ago and immediately i took salt and water because i heard it works but because i am in doubt , i have just gotten gynaecosid and i really need to know if it will work just incase i cooncieved but from my calculation the unprotected sex took place just 9 days after my last menstrual cycle ..so pls am i safe? Thanks