Also, is plan b effective if i have sex one day after taking it?
No it is not. Its called the morning AFTER pill for a reason. And you do have the potential for pregnancy 2 days after ovulation.
Do you mean two days AFTER having sex?
Plan b is about 80% effective anywhere in your cycle but no, it doesnt make you "good" for a few days, you return to fertility quickly and it isnt good for subsequent sexual encounters.
- Plan B Information for Consumers
- Plan B Information for Healthcare Professionals (includes dosage details)
- Side Effects of Plan B (detailed)
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