"I have been using Yaz birth control since July 2008, about a year and a half. It has worked great so far. The only problems that after I have had with it is that after a year of being on it, I started to occasionally bleed during sex. It is very awkward for me and my boyfriend. When I went to the my gyno, she said that I was perfectly healthy but maybe I could have been pregnant. So I took a pregnancy test and I was not pregnant (THANK GOD!). My doctor told me that I may have some blood clots on my cervix that my boyfriend may pop during intercourse. My periods are fine, but a week after my period ends, I get this brown spotting. It is weird but I have just learned to except it. Overall, I would recommend Yaz to anyone."