Menstrual prob due to ipill. What to do.

Hlw doc. My partner got period on 15th of july and it last for 5days and on 23rd of july took ipill after 22nd of july protection sex but I was confused that may some of it was on my hand so told her to took ipill and this is the 2nd time of this year within 2months she took ipill that is 23rd of july.. again she got her period on 29th july which last for 5days. And till date she didn't got her periods so she consult with doctor she told that the 29th of july bleeding was withdrawal bleeding so told to took a UPT test & suggest LOETTE mdcn for 21 days if UPT is negative and also told after taking 21days she may have period. She took a test of UPT yesterday at 3pm and it came negative.. but she didn't start the mdcn because she is scared.. Please suggest what to do...