Hello dear, Understand your concern. Please note that Postinor pil, is a two tablet containing 1.5 mg of synthetic progestin, Levonorgestrel. It is intended for the following uses: 1. Unplanned intercourse in couples that are steady or married; 2. Failed measures of contraception 3. In sexual abuse, rape or incest; For this emergency contraception to be effective, it is necessary to take one 1.5 mg pill of Levonorgestrel on a single day and within 72 hours of unprotected intercourse. Best results are seen when Unwanted 72 is taken quickly, within 72 hours of an event, as it takes 72 hours after fertilization for a woman’s body to produce a pregnancy. The level of protection provided by Unwanted 72 is as follows: If taken - within 24 hours – up to 95% effective If a woman should vomit after taking Unwanted 72, it is recommended to repeat the one time dose for effectiveness in pregnancy prevention under the direction of a healthcare provider. So it may be ineffective in 5%. Noe side effects of it due to hormonal imbalance: bloating and nipple discharge/ sore nipple. Irregular menstrualtio: delayed/spotting in menstruation Nausea/vomiting Leg pain You can check pregnancy by Urinary HCg kit or by blood HCG level and by USG. Maintain hygiene Take tablet mefstal spas two times a day Gentle massage of breast with prime rose oil. Wear paded supportive bra Eat fruits like papaya, orange and pomegranate Drink plenty of water Breathing and relaxation exercise. If not resolved Consult the gynecologist Do hormonal profile to diagnose hormonal imabalance USG if needed. Hope this may help you. Best regards Dr. Sagar