What Causes Stomachache And Vaginal Bleeding After Using Unwanted Kit?

Hi, my girlfriend got pregnant after sex with me and she took unwanted kit. Someone suggest her to take 2nd tablet after 12 hours of first teblet and after 4 hours she took 3rd. As of now i am feeling that something wrong and she have some pain in her stomach and bleeding still not start. Now please suggest what to do.