Your next period starts around the expected time
Your next period may be earlier or later than usual
You do not have pregnancy symptoms that keep getting stronger
You get a negative pregnancy test at the right time
A pregnancy test is most reliable 3 weeks after sex
If your period is more than 7 days late, take a pregnancy test
If you vomited within 2 hours of taking Plan B, it may not have worked
If you have severe lower abdominal pain, get medical care right away
If your period does not come within 3 weeks, take a pregnancy test
If you are still worried, contact a healthcare professional