jl23.. is it same guy or different guy? lol dont bother to answer that..
i didn't read the whole thread..only the first one..forgive me i don't know if anyone already gaven the answer to your question
(lucky i paid attention in my birth control lectures)
take one Postinor-2 within 48hours the best not more than 72 hours following intercourse and another 12 hours after taking the first pill. ( i remember 2 tablet postinor 2 for the first dose and 12 hours after that 2 tablet postinor 2 ) u took only one tablet? it would take two tablets to do the magic.

The pregnancy rate if taken postinor 2 after one day is 0.4%, 2 days is 1.2% and 3 days is 2.7%. Yes it's possible you'll get pregnant if precum/leaking haiya tell him to be careful more larr..

they say after u have taken postinor, if u have unprotected sex again, u may become pregnant. So u can take another 2 pills again BUT the MAX doses is 4 pills /month. If u vomited within one hour, u can take a vomiting pills together with postinor again.

Postinor-2 is used in emergencies and should not be used regularly. It's effectiveness is also not comparable with regular daily use contraceptives.
If u take more than 4 tablets, most of the time it wont be effective and it will disrupt your menstrual cycle, besides giving u its side effects.

one more thing, if u take postinor and then ur menses come, more than 4 to 5 days later..u can get pregnant if unprotected. if u take postinor late into your menses cycle then next menses will be prolonged laa..

The safest unprotected sex is few days before your menses come. or few days after menses. Only if your menstrual cycle is constant and always on time. But im not here to talk about that hehehehe..

Honey, just use the other methods if u r not sure, ok? If you can't understand what im saying it's better for u to use barriers such as condom. more safer.. never used postinor my whole life also.. im too afraid. they say if used prolonged can cause cervical cancer ooo..dunno larr.. my husband says to me dont use birth control anymore.. it ruins the hormone balance..later u become fat and have big pimples..aiyoo dats why i don't use birth control anymore..lol