Thanks for your reply. Do you have any articles to back up your claim that the sponges are not as effective as pills and/or condoms? I don't mean to be a prick, but when considering something as important as birth control I prefer to have reliable sources.
According to
http://www.youngwomenshealth.org/summarychart.html , which is a "collaboration between the Division of Adolescent & Young Adult Medicine and the Division of Gynecology at Children’s Hospital Boston," the sponge is just as effective as the male condom for typical usage. I am just trying to figure out if there is just a stigma against the sponge. It seems like such a good alternative, though I don't know anyone that has ever used one!