Will it still work if I have allergies or should I take another Plan B pill? Please help
Allergies to what? Being allergic to things like pollen, dust, animals etc isn't going to effect Plan B.
Plan B works by delaying your ovulation until the sperm leaves your body (up to 7 days). If you're already ovulating then it can't do that, so you would need one of the other methods of emergency contraception; either the other emergency pill called Ulipristal Acetate or to have an IUD fitted by a doctor. Either of those things can be effective if done within 5 days of the unprotected sex.
If you were in your fertile window of your cycle (roughly days 7 to 18 if your periods are regular), then you are better to use one of the other methods, especially if close to days 12 - 17 as most women with regular cycles ovulate somewhere around day 14 or 15, but I've allowed a few days either side to be safe.
Up to a week before ovulation your cervical mucus changes in consistency in order to save any sperm that enters your vagina. That means when you ovulate, you can get pregnant from sex you had up to 6/7 days (max) before hand.
Day 1 of your menstrual cycle is the first day of your period.
Just giving you the info in case you weren't aware.
- Plan B Information for Consumers
- Plan B Information for Healthcare Professionals (includes dosage details)
- Side Effects of Plan B (detailed)
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