dear doc,

iam having sex last 4 days ago without used any condoms and these was my first time but i had pull out before the ejaculates but as i knew there is something call pre-come that comes from boys before having sex is it?could it be pregnant because of this?we are very scared nowadays even no mood to eat,drink and sleep.i really need your advice.we haven't know it will be pregnant or not.so,what i can do to prevent pregnant?i did ask my gf to get some vitamin c juices,pineapple,some foot massage and get some cold foods such as coconut water,leong sui and so on...is it useful?or any other way can prevent pregnant or foods or medicine could buy in malaysia without give any effect to my gf?we can not let our parent know bout this,if not they will surely will kill us coz we r still young.reply as soon as possible..thx