You took Plan B during ovulation.
If you ovulate during that time, the sperm and egg can meet and cause pregnancy.
Morning-after pills work by temporarily stopping ovulation, but if your ovary has already released an egg, your EC won’t keep you from getting pregnant, according to Planned Parenthood.
Can emergency pills work during ovulation?
The emergency contraceptive pill
Both Levonelle and ellaOne are effective only if taken before the release of an egg from the ovary (ovulation). The sooner you take Levonelle or ellaOne, the more effective it will be. Ovulation is triggered by rising levels of a hormone called luteinising hormone (LH).
Does Plan B work after ovulation?
It works by temporarily stopping the release of an egg from the ovary, preventing fertilization if ovulation has already occurred, or, if an egg has already been fertilized, preventing it from attaching to the wall of the uterus. The sooner you take plan B®, the more effective it is.
Has anyone got pregnant after taking Plan B?
About 7 out of every 8 women who could have gotten pregnant will not become pregnant after taking Plan B. Plan B helps prevent pregnancy by delaying ovulation. Plan B emergency contraception should not be taken as regular birth control—it’s a backup method to be taken if you have unprotected sex.
Is it bad to take Plan B often?
There are no safety concerns about using progestin-only emergency contraceptive pills (like Plan B One-Step, Next Choice and Levonorgestrel Tablets) more than once. Emergency contraceptive pills can also have unpleasant side effects, such as making you sick to your stomach.