• The sponge is made of plastic foam and contains spermicide. It is soft, round, about two inches in diameter, and gets inserted deep into the vagina before intercourse; that way, it covers the cervix and blocks sperm from entering the uterus.
• It’s not all that effective; if women use the sponge correctly all of the time, nine out of 100 of them will become pregnant each year. I don’t know about you, but I don’t like those odds.
• Because no hormones are released into her body with this method, it’s not uncommon for women using the sponge to experience PMS. During the week before her period, she might suffer from irritability, emotional sensitivity, physical sensitivity, mood swings, stress, general pissiness, and zits. Yeah, it sucks, so give her a break.