Hello , It may Take aprrox. 40 days to become positive in Pregnancy test. If You had taken MTPill within 72 hours of Unprotected Sex then No worries. You should wait for 5-6 days further and again do the test. It will give its best result. Take precaution About This thing in future : - Use Condom if Both Of U agree to do. - Avoid unnecessary Exposures like this. I would try to explain about MTPill. MTPill (Mifepristone) - 200mg (3 Tablets) Main Use Active Integredient Marketed Name Intrauterine pregnancy Mifepristone MTPill Uses MTPill (Mifepristone) is indicated for the medical termination of intrauterine pregnancy through 49 days pregnancy. For purposes of this treatment, pregnancy is dated from the first day of the last menstrual period in a presumed 28 day cycle with ovulation occurring at mid-cycle. Any intrauterine device should be removed before treatment with MTPill (Mifepristone) begins. Pregnancy termination by surgery is recommended in cases when MTPill (Mifepristone) and Misoprost fail to cause termination of intrauterine pregnancy. Dosage and administration The usual dosage is 400mg of Misoprost taken two days after taking MTPill (Mifepristone) unless a complete abortion has already been confirmed before that time. Side effects headache dizziness fainting asthenia pelvic pain Precautions Please follow your doctor s direction carefully before taking MTPill (Mifepristone). Treatment with MTPill (Mifepristone) requires concurent administration of Misoprostol. MTPill (Mifepristone) should be prescribed only by your doctor or under the supervision of a gynaecologist, able to assess the gestational age of an embryo and to diagnose ectopic pregnancies. Ask your doctor if you have any questions. Thank U. Take care. DR JIGNESH