Hi there im 25 yrs old and had unprotected sex last night by mistake, only to realise this morning i missed my pill yesterday being Sunday. i took both pills this morning being Monday and my pharmacist said this should keep me protected and i shouldn't worry, is this correct? the next thing is i take st Johns wort, am i protected or should i worry. I really can not afford to be pregnant? i have been taking Yasmin for like two yrs but have never had unprotected sex with it. look forward to hearing your answers.