How long before the pill prevents pregnancy
Male and female condoms , the diaphragm , and the sponge all create a physical barrier. Spermicides are substances that contain chemicals that kill sperm. A person might use a cream, foam, film, suppository, or gel variety. Insert it into the vagina, near the cervix. Learn more about other nonhormonal methods of birth control. With typical use :. Combining a physical barrier, such as a condom, with spermicide increases its effectiveness.
Condoms need to fit properly to work, however. Here, learn how to find the right size of condom. A person inserts a vaginal ring into their vagina. They wear it for the first 3 weeks of their cycle, then remove it to allow menstruation to occur. If a person inserts the ring on the first day of their cycle, it works immediately.
Otherwise, it takes 7 days to work. Here, learn more about a type called NuvaRing. Using the birth control shot involves having an injection of the hormone progestin every 3 months. This prevents ovulation. When a person has an injection within 5 days of a period starting, it works immediately. Male sterilization, a procedure called a vasectomy , prevents sperm from getting into semen. A person still ejaculates, but pregnancy cannot occur.
After a vasectomy, fertility declines slowly and steadily. It involves closing or blocking the fallopian tubes, which would otherwise carry eggs from the ovaries to the uterus. Tubal ligation is effective immediately. A wide variety of birth control options exist. Some, such as barrier methods, provide immediate protection, while others, such as a vasectomy, can take several months to work. A doctor or gynecologist can advise on the range of alternative contraceptives. Sometimes a person may be ill when they take the pill.
When a person vomits, the pill can come back up, or they may not fully absorb it into their body. Anyone who experiences vomiting shortly after taking the pill should take another pill as soon as possible and then take their next pill as usual. In addition to taking birth control pills daily, a person should also take the pills at around the same time each day. This can maintain their hormone levels more consistently. A person should always take the minipill within the same 3-hour time window every day.
Someone who misses their window should use a backup birth control method for the next 2 days or avoid having sex. It is essential to start a new pack of pills the day after finishing the previous one.
However, sometimes a person may not have their new package yet. Missing a few days between packs can make the pill less effective at preventing pregnancy. According to the CDC , anyone who misses two or more pills in a row should use a backup contraceptive method or avoid sexual intercourse until they have taken the birth control pill for 7 consecutive days.
Some medications can make the pill less effective. Medications include certain antibiotics , such as rifampicin, and anti-fungal drugs, such as griseofulvin. A person should use backup contraception while taking these medications and for 48 hours after finishing the course.
Other more long-term medications and supplements may also affect how well birth control pills work. In some cases, medical or other conditions make the use of the Pill less effective or more risky. For example, it is not recommended for women who have had blood clots, certain types of cancers, or some migraine headaches. It also might not be recommended for girls who have had unexplained vaginal bleeding bleeding that is not during their periods or who think they might be pregnant.
Girls who are interested in learning more about different types of birth control, including the Pill, should talk to their doctors or other health professionals. A doctor or a nurse practitioner NP must prescribe the Pill. He or she will ask about a girl's health and family medical history, and do a complete physical exam, which might include a pelvic exam. If the doctor or NP prescribes birth control pills, he or she will explain when to begin taking the Pill and what to do if pills are missed.
The doctor or NP will usually ask the girl to come back in a few months to have her blood pressure checked and to see if she is having any problems. After that, girls who are having sex should get routine exams every 6 months to a year, or as recommended.
Many health and family planning clinics such as Planned Parenthood sell birth control pills for less. In addition, birth control pills and doctor visits are covered by many health insurance plans. Larger text size Large text size Regular text size. What Is It? How Does It Work? How Is the Pill Taken? Possible Side Effects The birth control pill is a safe and effective method of birth control.
The side effects that some women have while on the Pill include: irregular menstrual bleeding more common with the mini-pill nausea, headaches, dizziness, and breast tenderness mood changes blood clots rare in women under 35 who do not smoke Some of these side effects improve over the first 3 months on the Pill.
Page 2 Who Uses It? Health Conditions Discover Plan Connect. Pills, IUD, and More. Medically reviewed by Debra Rose Wilson, Ph. How long do I have to wait? Here, we break down the wait times by birth control type. If I have an intrauterine device IUD? If I have the implant? If I get the Depo-Provera shot? If I wear the patch? If I use NuvaRing? If I use a barrier method? If I just had a sterilization procedure? The bottom line. Read this next.
Medically reviewed by Janet Brito, Ph.
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