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Every method compared on how well it works in real life rather than in trials, including the two Indian options most guides leave out, and how to start, switch or stop.
Reviewed by Dr. Grishma Ranjangaonkar, MBBS, DGO, ICOG Fellowship in Gynecological Endoscopy · Eva WomanCare Clinic, Vashi
The best method of contraception is not the one with the highest number on a chart. It is the one you will still be using in two years, that fits what you want your body to do and when you want a pregnancy. This guide sets out what each option actually involves, what the first three months feel like, and the questions that decide between them.
Every method has two effectiveness figures. Perfect use is how well it works when it is used exactly right, every single time. Typical use is how well it works for real people with jobs, travel, illness and forgetfulness. For the methods that depend on you remembering something, the gap between those two numbers is enormous, and typical use is the honest one.
Notice what separates the tiers. It is not how modern the method is or how much it costs. It is whether it depends on a decision you have to make correctly, repeatedly, for years. That is the whole design principle behind the long-acting methods, and it is why they are recommended so strongly for anyone who is certain they do not want to be pregnant soon.
The table below covers what is actually available in India, including two options widely used here that do not appear in Western guides at all.
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Method
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How it works and how often
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Worth knowing
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|---|---|---|
The right method is rarely the most effective one on paper. It is the most effective one you will still be using in two years. These are the questions that decide it.
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If this is your priority
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The options that fit
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Why
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|---|---|---|
Emergency contraception is not an abortion and it does not work if you are already pregnant. It works by delaying ovulation, which is why timing relative to your cycle matters as much as timing relative to the incident.
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Option
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Window
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What to know
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|---|---|---|
If you begin within the first five days of a period, most methods work straight away. Started at any other point, you need a barrier method for the first seven days, or two days for the older progestogen-only pills. Ask specifically which applies to what you have been given, because it is the most common gap in the counseling.
There is usually an overlap rule so that you are never uncovered. Do not stop one and wait for an appointment to start the next. Plan the switch with your doctor, and expect to use condoms across the join.
Contraception should be started by day 21 after childbirth, because ovulation can return before your first period does. Progestogen-only methods, including the pill, implant and injectable, can be started at any time, including immediately. An IUD or IUS goes in either within 48 hours of delivery or from 28 days onwards. Combined hormonal contraception waits until day 21 if you are not breastfeeding and have no clot risk factors, and until six weeks if you are breastfeeding.
Contraception should be started immediately. If it is started within five days, no additional cover is needed. Fertility returns quickly, and the assumption that there is a safe gap afterwards is one of the more common reasons for an unplanned pregnancy soon after.
Fertility returns immediately after stopping the pill, removing an implant, or removing an IUD or IUS. There is no need to wait a few months before trying, and no evidence that doing so helps. The exception is the injectable, where return of fertility can take several months and is not predictable.
What to do depends on which pill, how many, and where in the packet you are. Do not guess. Every packet has instructions, and a phone call to the clinic takes two minutes and is a better use of your evening than searching online.
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What you notice
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Common with
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What it usually means
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|---|---|---|
Myth
“You need a break from the pill every few years.”
What is actually true
You do not. There is no benefit to a break, and the risk during one is an unplanned pregnancy. If a method is suiting you, continuing is safe. If it is not suiting you, the answer is a different method rather than a pause.
Myth
“The IUD is only for women who have already had children.”
What is actually true
Not true, and this belief keeps the most effective reversible methods away from the women who most need them. Both the copper IUD and the hormonal IUS can be used whether or not you have been pregnant. Insertion can be more uncomfortable, and pain relief for it should be discussed properly rather than dismissed.
Myth
“Hormonal contraception causes infertility.”
What is actually true
It does not. Fertility returns immediately after stopping the pill or removing an implant or IUS. What can happen is that a method masks an underlying problem such as irregular ovulation for years, so the problem is noticed when you stop rather than caused by it.
Myth
“Emergency contraception is an abortion.”
What is actually true
It is not. It works mainly by delaying ovulation, and it has no effect on an established pregnancy. This is a distinction worth being clear about, because the confusion stops people getting it in time to work.
Myth
“If my periods stop on the injection or the IUS, blood is building up inside.”
What is actually true
Nothing accumulates. The lining is simply kept thin, so there is little to shed. It is not harmful, it is reversible, and for many women it is a benefit rather than a side effect.
Ten minutes, done properly, saves a great deal. If none of this happened at your last one, it is reasonable to ask for it.
Typical-use and perfect-use failure rates are the CDC figures as compiled by the Guttmacher Institute. Timing of contraception after childbirth, miscarriage and abortion, and the lactational amenorrhea criteria, follow the FSRH guideline on contraception after pregnancy. The levonorgestrel-releasing intrauterine system as first-line treatment for heavy menstrual bleeding follows NICE guideline NG88. Centchroman dosing and trial efficacy are as published by CSIR-Central Drug Research Institute, which developed it. This guide is general information and does not replace advice from your own doctor, who has your history and your results.
What a normal cycle actually is, when heavy or painful is worth investigating, and what treatment exists.
Including why contraception is needed from day 21 whether or not your periods have restarted.
For when you stop. Fertility returns immediately after most methods, and there is no need to wait.
Useful for understanding your own cycle. Not a contraceptive method on its own.
Most women are on a method nobody discussed with them properly, chosen years ago for reasons that no longer apply. A single appointment covering what you want in the next few years, your periods and your history usually changes the answer.
