What will be safe birth control methods without any side effects.

Eat an apple: Eat an apple instead of having sex. :) Abstinence of one form or another is the only safe birth control method without any possibility of side-effects. Periodic abstinence means that you avoid intercourse during your fertile window. Methods with minimal side effects would be Condoms, diaphragms and sponges. Most other birth-control methods may have side effects but are generally safe.