For a reliable three-year pregnancy prevention plan without condoms or a copper IUD, I recommend these hormonal options: 1. Hormonal Implants (e.g., Nexplanon): A tiny rod inserted under the skin of the upper arm. It is over 99% effective and lasts exactly three years, making it ideal for your timeframe. 2. Daily Birth Control Pills: Combined oral contraceptives or progestin-only pills. These are highly effective but must be taken daily at the same time. 3. Contraceptive Injections (e.g., Depo-Provera): An injection given every three months. Please consult a gynaecologist to review her medical history and safely choose the best prescription option.