Forms of contraception:
Natural/physiological methods of contraception
Barrier methods of contraception
Hormonal contraception
Intrauterine contraception
Irreversible methods of contraception
Time until effective for contraceptives (if not first day of period):
- Instant - IUD
- 2 days - POP
- 7 days - COC, injection, implant, IUS
Methods of contraception
- Gamete suppression - hormonal contraceptives
- modulation of cervical mucus - progesterone thickens cervical mucous and prevents sperm entering
- endometrial changes - progesterone causes endometrial atrophy (prevents implantation)
- prevention of implantation (thinning of endometrium)
- interruption of the communicating tubes (irreversible contraception)
Importance of contraception
Provides patients with choice and control over their sexual health