My gf says she wants to have sex without condom and use ipill unwanted 72 afterwards.is it safe doing this way?any side effects of ipill in future?

Bad idea.: Emergency contraception is to be used when a method of birth control fails. The morning after-pill is not meant to be used after deliberately avoiding one's primary method of birth control. That means a couple who plan to have sex (plan = non-emergency) without birth control needs to rethink their plan. The woman can ask about getting an IUD, which prevents pregnancy for years until it's removed.