Hello dear Understand your concern You can do the abortion by medical pills upto 9 week of pregnancy (63 days). But should be used as early as possible after confirming pregnancy. As you had taken i pill with in 17 hour, chance of pregnancy is less. You should go for pregnancy if period is delayed by 10 days. It may be delayed due to stress or hormonal imbalance due to I pill. If intrauterine pregnancy is confirmed by USG, you can use mifepristone followed by misoprostol under observation of gynecologist. Do not use this abortion pill as a self medication without guidance as it cause serious complication and chance of failure. Do not worry, concentrate on your exam and your condition is manageable easily under guidance of gynecologist. Hope this may help you Best regards Dr. Sagar