Condom slipped off during sex so I've purchased EllaOne online just to be safe and it is supposed to arrive tomorrow. I've been reading up a lot on it and it says it is not to be used by under 18's as the effectiveness has not been proven for this age group - I'm 16. Should I take it anyway? I know if it says I shouldn't then it's best not to but I really need emergency contraception just incase and don't have long to make the decision.