I had sex the night before and the next day I took my birth control pill 7 hours late. I took Plan B within roughly 24 hours after having sex, so should I be safe?
Not necessarily. No birth control is 100% certain to prevent pregnancy.
If you had missed pills prior to the sex, & had begun to ovulate, then Plan B may not be able to help you.
Plan B works by delaying your ovulation until the sperm leaves your body (can take up to a week in the right fertile mucus). If you are already ovulating, then it can't do that, & you may end up pregnant.
Some think Plan B works in other ways, but the Manufacturer does not state that. They say it's possible, but don't say it does, as it has not been proven in tests.
If you're ovulating, then you're best opting for Ella (Ulipristal Acetate), as it's known to work in more ways than Plan B is thought to do.
If you did not miss any pills prior to the one that was 7 hours late, then just following the instructions on your pill, on what to do if you're late with a pill, should have been enough. You shouldn't have needed Plan B. I'm assuming you did follow those instructions, & just thought Plan B was an extra measure.
If you didn't follow the instructions, then, again, pregnancy is possible.
- Plan B Information for Consumers
- Plan B Information for Healthcare Professionals (includes dosage details)
- Side Effects of Plan B (detailed)
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