N.J. - One of every two women between ages 15 and 44 in the United States has experienced at least one unintended pregnancy, according to James Trussell, faculty associate at the Office of Population Research at Princeton University. When looking for the best method of birth control, it is crucial for a woman to find a consistent routine that will fit into her lifestyle, Trussell said.
People usually opt for what is most effective.
Contraception methods can be divided into categories. Barrier methods are among the most widely used, Leahy said. They include male and female condoms, diaphragms, cervical caps, and contraceptive creams, jellies, foams and film. Many barrier methods, especially the condom, offer some protection against sexually transmitted disease, she said. Another facet of the barrier approach is the rhythm method.