Can my boyfriend go down on me after using a VCF?
Vaginal contraceptive film works because of the sperm killing chemical called nonoxynol-9. It is considered a form of spermicide. The World Health Organization reports that spermicides, including films, have a failure rate of 29 percent with typical use and 18 percent with perfect use. In other words, it is effective 71 to 82 percent of the time at preventing pregnancy.
On the other hand, a much better efficacy is reported by Canada’s Planned Parenthood, whose VCF factsheet puts the rate at anywhere from 79 to 94 percent effectiveness. With typical-use effectiveness rates much lower than that of hormonal birth control methods, it is a good idea to use a back-up method for preventing pregnancy.
Condoms are an excellent choice for a second method to combine with VCF to increase effectiveness at prevention of pregnancy. Because VCF offers no protection against sexually transmitted diseases, condoms should be used unless the couple is monogamous.
I've used it. It's pretty convenient. Just remember to wait at least 15 minutes after inserting to have sex. Yes, it can get sticky fast so you have to insert it quickly. It might take a few trial runs (I've had to start over with a new one before) but it's not hard. Insert it as far as you can. You should be able to feel your cervix. Just remember to do it quickly or you'll have to start over!
Also, my friend used it for awhile for birth control. I think she used it for about a year before her husband got a vasectomy. No pregnancy scares for either of us. Hope it works for you. :).