There are many types of contraceptive techniques in use today - none of which are 100% effective. Many concentrate on keeping sperm out of the uterus. For example diaphragms and condoms are designed to provide a physical barrier. Spermicides or sponges provide a chemical barrier. Natural Family Planning (NFP) modifies the sexual act itself. Other techniques, hormonal methods, concentrate on interfering with the ovum. The oral contraceptive pill affects the ovum's development and release, an injection type such as Depro-Provera and Lunelle suppresses ovulation or an implant such as Norplant also suppresses ovulation. The Intrauterine devices (IUD) help to prevent the fertilized egg from implanting in the uterus. When used correctly condoms are just as effective.
The Pill
Considered to be 97% effective against pregnancy but does not protect against sexually transmitted diseases. Therefore, using a condom on conjunction with hormonal methods is more effective in pregnancy and disease prevention.
Norplant
Provides a long-acting, effective contraception for a period of five years. It becomes effective within 24 hours of insertion. Like the others this hormonal method does not protect against STD’s. Therefore, using a condom on conjunction with hormonal methods is more effective in pregnancy and disease prevention.
IUD
Considered to be 98% effective but does not protect against sexually transmitted diseases. Therefore, using a condom on conjunction with hormonal methods is more effective in pregnancy and disease prevention.
Condom
Usually about 86% effective, however when used properly a 100% of the time it is approximately 98% effective. It provides the user with an effective method of pregnancy and sexually transmitted diseases prevention.
Diaphragm
Considered to be 80% effective against pregnancy but they do not protect against sexually transmitted diseases. Therefore, using a condom on conjunction with this methods is more effective in pregnancy and disease prevention.
Lunelle
It is considered to be 99% effective against pregnancy, however it does not protect against sexually transmitted diseases. It is a hormonal shot. Therefore, the use of a condom is must in order to prevent the contraception of a disease.
Ortho Evra