Me and my girl friend had sex on july 4th and her last period date was June 10th.I am sure that,I was not ejaculated. But I gave pills to her to get period and she got on july 25th and last for 3 days. Again she got period on August 27th,but it was only 1.5 days.so she worried again and took pills to get period. She got period on September 11th and last for 3 days. Please let.me know,if she pregnancy is possible? Those are normal.periods? Or implantation bleeding? Or these are due to pills and still she can be pregnant?? Please help me