I am 21 and my girl friend is 19, we intercourse without precautions on June 3rd and she got her menses by 15th after taking some menses tablet(her menses cycle is 9th of every month) it was bleeding heavily for two days and 3rd day a little bleeding, and this month still she dint get her periods yet, we dint do sex from that day till this day. one of my friend said that the bleeding may be spotting.

Is there any chance that after periods, will there be any chances of pregnancy, please reply, we are very much worried.