Hii Doc. I Had Unprotected Sex On Saturday Night Been

Hii doc. I had unprotected sex on saturday night been thinking of taking epils this monday since 72 hours are not yet over. A friend of mine told me about femiplan. My boyfriend and i are to have sex tomorrow and we dont use condom because it causes him to have rushes. So is it adviceable for me to use epills and start using femiplan om the same day. Please advice