<s>[INST] I took postinor 2 in less than 24hrs after having unprotected sex,I actually took both pill at once.afterwards I took alcohol and still had unprotected sex the next day.all these happened four days after my last period.will the drug still be effective?also,since it all happened only four days after my last period ended I'm I safe?tnx [/INST] you are quite safe.u need not worry,it is only 4 th day after ur period.there is no chance of ovulation.so it is quite impossible to become pregnant.more postinor will have same action upto 72 hrs. so no need to be worried.but from next time be cautious about unprotected sex.and i believe in next month u hav period ,but some irregularity can happen due to intake of postinor. </s>