Decision aid
Choosing contraception — compare your options
General information to help you prepare for your GP — not a diagnosis, not personal medical advice. It doesn't replace a consultation, and using it doesn't create a doctor–patient relationship.
There is no single "best" contraception — only the one that fits your body, your life and what matters most to you right now. The real menu is wider than many people realise: long-acting options like the IUD and implant, the pill and other hormonal methods, and barrier and permanent options each suit different situations.
The most useful thing to know before you choose is the gap between perfect-use and everyday-use effectiveness. The methods you don't have to remember — IUDs and implants — are the most reliable in real life, because there's nothing to forget.
This guide lays out how the choice is weighed, so you can take clear questions to your GP.
There’s no single best method — only the one that fits you
Choosing contraception can feel like being handed a long, jargon-filled list and asked to just pick. It isn’t really that. Beneath the list is a small set of questions about you — how reliable you need it to be, whether you’d rather not have to remember a daily tablet, how you feel about hormones, what your periods are doing, and what your plans are for the next few years. Once those are clear, the list gets much shorter.
This guide walks through how the choice is actually weighed in Australian general practice, so the questions you bring fit your situation rather than a generic one.
The one number that changes everything: typical use vs perfect use
If you take one idea away, make it this. Every method has two effectiveness figures: how well it works when used perfectly, and how well it works in real life, where doses get missed and timing slips. For methods you have to remember, that gap can be large. For methods you don’t — the IUD and the implant — there’s almost no gap, because there’s nothing to forget, as HealthDirect and Jean Hailes both explain.
That’s why the long-acting reversible methods sit at the top for everyday reliability. It isn’t that they’re “stronger” — it’s that real life doesn’t get a chance to interfere.
The broad families of options
It helps to see the menu grouped, as the Better Health Channel and Pregnancy, Birth & Baby set them out:
- Long-acting reversible contraception (LARC) — the hormonal IUD, the copper IUD (hormone-free) and the contraceptive implant. Fitted once, effective for years, easily reversed. The most reliable in everyday use.
- Short-acting hormonal methods — the combined pill, the progestogen-only pill, the vaginal ring and the injection. Effective when used consistently; reliability depends on remembering them.
- Barrier methods — condoms, which are the only option that also reduces sexually transmitted infections, and can be combined with another method.
- Permanent methods — surgical options for people certain they’ve completed their family.
No family is automatically better. Each trades off reliability, convenience, hormones, effect on periods and reversibility differently.
What actually shifts the answer for you
The right method genuinely changes with your circumstances, which is why a one-size recommendation rarely fits, per eTG and the RACGP:
- Your health history — certain migraines, high blood pressure, smoking over a certain age, or a history of blood clots can make the combined pill less suitable and point toward other options, as the Australian Medicines Handbook notes.
- Whether remembering a daily tablet suits your life — if not, a LARC removes that burden entirely.
- What your periods are doing — some methods can make heavy or painful periods lighter, which can be a deciding factor in itself.
- Your plans — wanting to conceive soon, spacing children, or being sure you’ve finished all point to different choices.
Sorting your own priorities into that shape is exactly what the contraception decision aid below is built to help with — it lays the options side by side so you can prepare your questions, not pick for you.
Effectiveness isn’t the only thing that matters
It’s worth saying plainly: the “most effective” method isn’t automatically the right one for you. A method you’ll actually be comfortable with, can access easily, and won’t resent is often a better fit than a technically more reliable one you’d struggle to live with. Side-effect profiles, how a method affects your bleeding, the up-front discomfort of a procedure, and even cost and how often you’d need to see a doctor all legitimately weigh in, as Jean Hailes and the Better Health Channel acknowledge. There’s no prize for choosing the “strongest” option if it makes you miserable.
This is also why switching is normal and reasonable. Many people try one method, find it doesn’t suit them, and move to another — that’s not failure, it’s how finding the right fit usually works. Knowing that in advance takes the pressure off the first choice.
A note on emergency contraception and the morning after
Separate from your ongoing method, it’s worth knowing that emergency contraception exists for when a regular method fails or wasn’t used — and that it’s time-sensitive, working best the sooner it’s used after unprotected sex, as HealthDirect describes. Some forms are available without a prescription, and a copper IUD can also serve as highly effective emergency contraception in a defined window. None of this replaces a regular method, but it’s a useful safety net to understand before you need it, and a fair thing to ask your GP or pharmacist about.
The questions worth taking in
- Given my health history, which methods are suitable for me — and are there any I should avoid?
- How reliable is each option in everyday use, not just in theory?
- Which methods might also help with my periods, mood or skin?
- If I try something and it doesn’t suit me, how easily can I switch or stop?
These are questions, not conclusions. The aim is to choose with your GP, fitted to you.
What this is, and is not
This is general information to help you prepare for your GP — not a diagnosis, and not personal medical advice. It doesn’t tell you to start, stop or change any contraceptive method; those decisions are made with your own doctor, who can weigh your history. For trustworthy Australian background, see HealthDirect, Jean Hailes and the Better Health Channel.
Related on this site: the contraception explainer covers each method in more detail; the periods and endometriosis decision aid is relevant if heavy or painful periods are part of the picture, and the fertility and family-planning decision aid covers the decisions at the other end.
If you want an unhurried, thorough conversation about what would fit your life, you can work with Dr Lo.
Author: Dr Hoe Bing Lo — AHPRA MED0001212640 · FACRRM. Fun Doctors Pty Ltd · ABN 83 404 436 330.
Tools to take to your GP
Each runs in your browser — nothing you enter is stored or sent anywhere. They help you prepare the questions and print a one-page summary to bring to your appointment. They don't diagnose or recommend a specific treatment.
Frequently asked questions
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Which contraception is the most effective?
In everyday use, the long-acting reversible methods — the hormonal IUD, the copper IUD and the contraceptive implant — are the most effective, because once they're in place there's nothing to remember. The pill, ring and injection can work very well too, but their real-life effectiveness drops when doses are missed or late. That gap between 'perfect use' and 'typical use' is the single most useful thing to understand when comparing options. Which one suits you still depends on your health, your preferences and your plans, so it's worth talking through with your GP.
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Is the pill bad for me, or risky?
For most healthy people the combined pill is a safe, well-understood option, but it isn't right for everyone. It carries a small increased risk of blood clots, and some conditions — certain migraines, high blood pressure, smoking over a certain age — make it less suitable, in which case other methods are recommended. The honest picture is that the pill is one good option among several, not a default or a danger. Your GP can check whether it suits your particular health history.
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Do IUDs hurt, and are they only for people who've had children?
IUDs can be used whether or not you've had children — that older idea has been left behind. Having one inserted can be uncomfortable and brief cramping is common, and there are now ways to make the procedure more comfortable, which is worth asking about. Once in, an IUD lasts several years, is one of the most effective options, and is easily reversible when removed. Whether an IUD suits you is a good conversation to have with your GP.
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Will hormonal contraception affect my mood, weight or future fertility?
Different methods affect different people differently, so it's hard to predict in advance — some people notice changes in mood, bleeding or skin, others notice none. Most hormonal methods do not cause lasting weight gain, and fertility returns once the method is stopped or removed (the injection can take a little longer). If side effects bother you, switching methods is common and reasonable. The point is that you're allowed to try, review and change rather than putting up with something that doesn't suit you.
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What if I want something permanent?
Permanent options exist for people who are sure they've completed their family — these include procedures for women and for men. They're highly effective and meant to be permanent, so they're a bigger decision than reversible methods and worth careful thought and discussion. If you're not certain, a long-acting reversible method gives you very similar everyday reliability while keeping your options open. Your GP can talk you through what each path involves.
Source quality
Sources grouped by evidence tier. Australian primary tier first; international where Australia is silent or lagging. How tiers work.
If you want a thorough, unhurried work-up of your own — not a generic answer — you can work with Dr Lo.