HOw effective are no missed birth control pills for a year & a condom combine?

What chance would I have of getting pregnant with no missed birth control pills in a year %26amp; a condom as well how effective will I be with only the pill?HOw effective are no missed birth control pills for a year %26amp; a condom combine?
No method of birth control(read contraception) is 100% effective. However, if you are correctly using one of the birth control methods described, the risk can be quite small.





There are two main types of birth control:





* Hormone methods. Some common hormone methods include: birth control pills and Depo-Provera shots. The hormones stop the egg from leaving the ovary and make the mucus in the vagina too thick for sperm to move in. They prevent pregnancy 99% of the time.


* Barrier methods. The condom, caps and diaphragms are barrier methods. The condom blocks the sperm from getting to the egg. If used correctly, condoms prevent pregnancy 85% of the time.





To avoid any kind of risk, it is always advised to use a combination of the two methods described above.