These men seem to know a lot more than even the girls I grew up with (at least until we got to college). We felt like the pill/patch/etc. worked somehow, but we weren't sure how. I see a lot of posts on VP from people who don't know, either. Regardless of gender, an alarming number of people don't know this stuff, including many of the people who use these birth control methods and rely on them on a regular basis.