i had sex with my gf on her 5 day of the cycle ...ie whn her periods got over.....the condom tore but i did not ejaculate inside....just for safety she took an ipill the same day.cycle starts on 15th of last month n sex on 20th of last month.....her periods were expected on around the 10th of this month...on 9th she got a light brown discharge in the starting followed by little blood....but very very less.....on 10th again she got the brown thing and nothing since then.....being nervous we checked thru hpt n result negative....today again we checked n again it showed negative(used morning 1st sample)....its almost a week now....i wanted to know whether she is pregnant??? and was it her periods which she got or wht? n whn will she get her periods???????plz help

thanks