The other issue with birth control pills is the blood clotting factor. My cousin took BCP to regulate her periods and three months later had a pulmonary embolism, which killed her. Her family was tested and both of her parents have a recessive clotting factor, and her mother had a second clotting factor on top of that. So my cousin certainly had one and may have had two genetic reasons to explain the embolism. I have one of those factors myself so will never take birth control. If you aren't at increased risk for clotting, it's fine, but I would advocate that you test for clotting factors before starting BCP - she never knew she had any increased risk for clotting when she started taking them. And her mother took them for years, so she had no reason to suspect there would be a problem.
Me (40) DH (47) & furbabies * m/c 7/08 4/12 11/12