I had sex with my boyfriend on 13th july My period date was due on 14 Yet I?m not on my periods I did home pregnancy test as well which proved out to be negavte We had protected sex (condom) and he used withdrawal method as well but as he got some problem in the first condom he changed it but there was no ejaculation in the first one Where else we checked both the condoms and none was broken I was worried stressed and decided to take period preparing pills Which the person in medical gave me ?promount-n? yes I spelt it right it was?t primolut- n I took 3 tablets in one day I?m worried as I?m still not on my periods What should I do.