My friend need help please help me

My friend called me being nervous so she had sex on the last day of her being fertile she told me but her boyfriend didn't nut inside of her but during the same week Thursday night she took a Plan b just to be safe then sorry I guess but her and her boyfriend ended up having sex but he didn't nut in her but before she gave him a blowjob and suck the precum off should I tell her she ok just used protection next time or tell her she should be worried please help