Hello dear I understand your concern You have a side effect of the Unwanted 72. Unwanted 72 contain high progesterone and cause withdrawal bleeding and abdominal pain, headache and backache. All these symptoms does not indicate the pregnancy. You have to think about the pregnancy when your period will delay by more than 12 days as unwanted 72 itself cause delay in the period by 8-10 days. If you will be pregnant then still you cn terminate it by abortion pill under the advice of gynecologist. Take proper rest and light healthy diet Tablet meftal spas and diclofenac will help for pain. Hope this may help you Contact HCM for further health query Best regards Dr. Sagar