Hello Priya and welcome, I understand your problem. Please remember that unwanted 72 can be used only once in one month after one sexual act. It is meant for emergency use in cases where regular contraception is not possible like unexpected sexual episodes. Using it regularly is not recommended at all as we do not know if it will provide protection if used more than once in one cycle. The symptoms that you are getting now are due to the pills. They cause an inflammation of the stomach [ gastritis] causing pain and nausea. They may also cause liver dysfunction in high doses. So as of now, pease take an enti vomiting tablet like ondensetrone to help decrease the nausea. An hour later take antaacid like omeprazole 20 mg. With this the nausea and stomach pain must decrease. Please eat a simple diet like clear soup [ not sour] without any spices, or rice gruel until the pain subsides. If the symptoms decrease, continue to take omeprazole once daily for 5 days. If they do not decrease after one dose then you will need to see your doctor and need injectable drugs to help control the condition. Hope this satisfies your query. Thanks for using HCM. Feel free to ask any more questions that you may have. Dr Madhuri Bagde Consultant Obstetrician and Gynecologist