I've been on birth control for over a year now. I started a pack on a Sunday at about 9:00 at night. On Monday at about 11 in the morning I threw up twice so I don't know if that would be considered a missed pill. I had unprotected sex on Thursday and took Plan B about 4 1/2-5 hours after. Is it likely that I could be pregnant?
It would not count as a missed pill, as it was well digested before you vomited. If you'd thrown up within an hour of taking the pill, that would be different.
If you took the rest of your pills as prescribed, then you do not need to worry about pregnancy, & did not need to take Plan B.
As you took Plan B, you can expect some hormonal symptoms for the next few weeks.
It's likely you could get some bleeding or spotting before your period is due.
It's also like that your next period will be late by a week or two.
You may get other hormonal side effects, such as:
- Plan B Information for Consumers
- Plan B Information for Healthcare Professionals (includes dosage details)
- Side Effects of Plan B (detailed)
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