The pill asks you to remember something every day for years, and most people eventually do not. Long-acting methods move that burden off your memory: one appointment, then nothing to do for months or years. The trade-off is not effectiveness — these are the most effective methods there are — it is that your bleeding pattern usually changes, and that you need a clinic to start and to stop.
What long-acting means, and who it suits
Long-acting methods are the ones that keep working without a daily decision. Because nothing depends on remembering, their real-world failure rate is close to their ideal one — which is not true of pills, patches or condoms, where typical use and perfect use are far apart.
- Implant — a small rod under the skin of the upper arm, several years
- Injection — one shot roughly every three months
- Hormonal IUD — placed in the uterus, several years, usually lightens periods
- Copper IUD — hormone-free, several years, usually makes periods heavier
If you are deciding between these and the daily or emergency options, the birth control overview covers pills, patches and the morning-after pill, and how each is obtained here.
The arm implant
A rod about the size of a matchstick sits under the skin of the inner upper arm and releases a progestogen steadily. Insertion takes a few minutes under local anaesthetic; you feel pressure rather than the rod going in, and you can feel it with a fingertip afterwards but it is not visible.
- Lasts several years and can be removed at any point before that
- No oestrogen — often an option when oestrogen is not advised
- Bleeding is the main unknown — some stop altogether, some spot irregularly for months
- Fertility returns quickly once it is out
The three-month injection
A progestogen injection given roughly every twelve weeks. It suits people who want nothing in the body between visits and do not mind the appointments — and it is the one method on this page where being late matters, because cover runs out on a schedule.
- One visit every three months, with a window on either side
- Periods often become light or stop over the first year
- Return of fertility is the slowest here — it can take several months to a year after the last shot
- Not the one to choose if you may want to conceive soon
That last point is the one worth sitting with. Everything else on this page switches off within weeks of stopping; the injection has to wear off, and there is no way to speed it up.
IUDs: hormonal and copper
Both sit inside the uterus and last years, but they pull your periods in opposite directions, and that is usually what decides between them.
| What to expect | |
|---|---|
| Hormonal IUD | Periods usually get much lighter; many stop. Often chosen for heavy or painful periods as much as for contraception. |
| Copper IUD | No hormones at all. Periods often get heavier and crampier, especially in the first months. |
| Both | Several years of cover, removable at any time, fertility returns essentially straight away. |
A hormonal IUD is also used to treat heavy bleeding and to protect the endometrium, so it can do two jobs at once. A copper IUD is the option when you want effective contraception with no hormone in it at all.
Having one fitted, and having it taken out
The question people actually want answered is how much it hurts. For an implant: local anaesthetic, a few minutes, pressure rather than pain. For an IUD: a cramp like a strong period cramp for under a minute, then easing — most people walk out and go about the day, and pain relief beforehand helps.
- A scan and a chat first — to check the uterus and rule out a current pregnancy
- Infection screening before an IUD — standard, and worth doing properly
- A check a few weeks later — to confirm position and see how bleeding is going
- Removal is quicker than fitting for both, and is your decision at any time
If you are starting contraception after a pregnancy ends, the timing is in hormones and your cycle after an abortion — the short version is that fertility returns before your period does, so this is usually settled at the follow-up visit rather than later.
Common questions
Which long-acting method is best?
There is no single best one — they are all highly effective, so the choice usually comes down to what you want your periods to do, whether you want hormones, and how soon you might want to conceive. That is a short conversation at consultation.
Will an IUD stop my periods?
A hormonal one often makes them much lighter and may stop them altogether, which is safe and is sometimes the reason it is chosen. A copper one does the opposite — periods usually get heavier, especially at first.
How quickly can I get pregnant after stopping?
Almost immediately for the implant and both IUDs — fertility returns once they are removed. The injection is the exception: it can take several months to a year after the last dose, which is worth knowing before you choose it.
Can I have one fitted if I have never given birth?
Yes. The idea that IUDs are only for people who have had children is out of date; smaller devices exist and fitting is routine. The implant has never had that restriction at all.
Can I start one right after an abortion?
Usually yes, and the follow-up visit is the natural time. Ovulation can return within about two weeks, before any period, so settling contraception then rather than later is the practical move.
Talk to someone, privately
Ium in Seocho supports international women with confidential, English-speaking care. Reach out with a message or a call — no pressure, no judgment.
Book a private consultationThis article is general information, not medical advice, and does not replace a consultation with a licensed doctor. Details of care and current guidance should be confirmed directly with the clinic.
