Periods issue after taking ipill.

My gf has took an ipill within 24 hr on 27 may and den after a week she got her withdrawal bleeding which is also known as induced bleeding on 3 june, v have consult a online doc also so he said that she will be expecting her normal periods bleeding around 1 week of July. 3 July has came and no bleeding then I again consult a doc so he said wait for 1 or 2 days and then do urine test, den on 4 July evening she got her light bleeding but no normal peroids, but she was getting her pain in her back and crump little bit, the after next morning on 5 July she was having a heavy bleeding and she told me that she got her normal peorids and I believe in her. After a week also she took a urine test and it came negative. I have just told her that be positive and Don't take tension like. So doc I would like to ask us is that she is not pregnant na Well I have consult a doc also but he told that she is not pregnant, she got her withdrawal bleeding and Normal​ bleeding also. So kindly suggest