Contraception Options in Australia 2026: Pill, IUD, Implanon & What’s Right for You

How effective is “effective”?

Effectiveness rates are usually quoted in two ways: perfect use (when used exactly as
directed) and typical use (real-world use, with mistakes). Long-acting methods (IUDs,
Implanon) win because there’s nothing to remember. Daily pills lose effectiveness quickly with missed
doses. We’ll quote typical-use figures throughout this article.

The Combined Oral Contraceptive Pill

~91% effective with typical use. Daily progestogen + oestrogen pill. Can regulate
periods, reduce acne, and reduce period pain. Pros: easy to start and stop, periods
often lighter and more predictable. Cons: must remember every day, slightly increased
risk of blood clots, not suitable for smokers over 35 or those with migraines with aura.
Cost: PBS-subsidised, often $7–$15/month.

The Mini Pill (progestogen only)

~91% effective with typical use. Suitable for breastfeeding, smokers, or anyone who
can’t take oestrogen. Strict timing required (within 3 hours of usual time). Periods often become
irregular or stop entirely. Cost: PBS-subsidised.

Mirena IUD

~99.8% effective — one of the most effective options. Small T-shaped device inserted
into the uterus that releases progestogen continuously for 5 years. Significantly reduces or stops
periods. Helps with heavy menstrual bleeding and endometriosis pain. Insertion:
15-minute procedure under local anaesthetic at Cranbourne West. Cost: PBS-subsidised
device + bulk-billed insertion.

Kyleena IUD

~99.7% effective. Smaller, lower-hormone alternative to Mirena. Ideal for younger
women, those who haven’t been pregnant, or anyone seeking a smaller device. 5 years protection. Periods
often become lighter (rarely stop fully). Cost: PBS-subsidised device + bulk-billed
insertion at Cranbourne West.

Copper IUD

~99.4% effective. Hormone-free option — perfect for women who prefer to avoid hormonal
contraception or have medical contraindications. Up to 10 years protection. Note:
periods may be heavier or longer initially. Can also be used as emergency contraception (within 5 days
of unprotected sex).

Implanon NXT

~99.9% effective — the most effective contraceptive available. Small flexible rod
inserted just under the skin of your upper arm that releases progestogen for 3 years.
Insertion: 5-minute procedure under local anaesthetic. Pros:
completely hands-off, fertility returns quickly after removal, safe for breastfeeding.
Cons: irregular bleeding patterns common, especially in the first 6 months.
Cost: PBS-subsidised device + bulk-billed insertion. Dr Faisal Siddiqui at Cranbourne
West has special interest in implant insertion.

Depot Provera (DMPA injection)

~94% effective with typical use. Progestogen injection every 12 weeks given by the
practice nurse. Periods often become lighter or stop entirely. Cons: may affect bone
density with long-term use (3+ years). Reversibility takes 6–12 months. Cost:
PBS-subsidised.

Emergency contraception

Levonorgestrel (Postinor): most effective within 24 hours, up to 72 hours after
unprotected sex. Available over the counter at pharmacies. Ulipristal (EllaOne):
effective up to 120 hours (5 days). Prescription. Copper IUD: most effective emergency
contraception (over 99%) when inserted within 5 days. We can insert at Cranbourne West urgently.

How to choose

Talk to your GP. Key factors: your age and whether you’ve had children, your health conditions, whether
you smoke, your tolerance for hormonal effects, how much you want to think about it daily, your budget,
and your future fertility plans. Cranbourne West has 3 female GPs (Dr Sumudu, Dr Zunaira, Dr Sree) and
Implanon insertion expert Dr Faisal — book a longer appointment to discuss.