given too many ECP's to my gf

sir/madam,

   i am having a 16 urs old gf....around 9 days ago i had sex with her.....and gave her an ECP(i-pill)..which has to be taken within 72 hrs...after 2 days i again had sex with her. Afraid that she may get pregnant, i gave her one more ECP in this short duration of 2 days. After a day of having the second ECP, she developed headache,nausea,vomiting,stomach ache etc.which continued for 2 days. After that she started having her periods (although she had her last periods 12 days ago only). Her periods last for 2 days only. And again she started feeling pain in her stomach,headache etc as she was having in pre periods time which is still there.even after a week of having second ECP.....i am really concerned about her health. Is there anything seriously wrong with her?...please suggest a cure as due to society difference in my country i cant afford to take her to doctor.