Yuzpe method

I had yesterday unprotected sex, and my boyfriend cum inside, so today I look up in the internet the Yuzpe method that it consist on taking 4 birth control pills (before the next 72 hours that the sexual act had ended) and on the next 12 hours another 4 pills, has someone use this emergency method? , This month I start using evra patchs but I know I wasn’t safe just with that