Is there a limit to how many times my boyfriend can ejaculate inside me before I take Plan B?

Plan B, also known as emergency contraception, is a hormonal emergency birth control method used to delay ovulation in the hopes of preventing pregnancy. The hormones prevent ovulation – the process when the ovaries release an egg – and thicken cervical mucus. Plan B is not an abortion pill. It will not harm or end a pregnancy; it will only work to delay ovulation to reduce the risk of a pregnancy.

Although Plan B can be taken up to 5 days after unprotected sex, it’s only delaying ovulation- not stopping it completely. So if someone has unprotected sex on Thursday, Friday, and again on Saturday, they would need to take Plan B each time they had unprotected sex in order for it to be effective. Keep in mind too that how effective Plan B is depends on how soon it’s taken after unprotected sex and even then, it won’t be 100% effective.

Plan B or emergency contraception is not meant to be someone’s primary form of birth control. Click here to see a list of other hormonal birth control methods that can be up to 99% effective in preventing pregnancy.


Call Teen Clinic at 303-442-5160 if you have more questions or want to make an appointment.