WOW!5? I think you shouldn't have taken that many. You're going to make yourself sick. My advise...HONESTLY...contact the poison control center. When it's the morning after pill it's a certain pill and you take 2 and then 2 12 hours later. You took too many. I hope everything is ok...so my question is why did you take that many? why did you need them? Are you on birth control?
OTC isn't one that you can use for Emergency contraception. Only pills containing levonorgestrel can be used. Do NOT take any more. Taking that many pills without consulting a doctor or nurse is very dangerous.
Go to your doctor, and see if maybe they'll prescribe the Morning After Pill. However, they may be reluctant to do so, given how many pills you just took.