"i took lo loestrin fe for 2 years and honestly loved it. i switched briefly to the generic version for a month, and it was freaking awful, so i switched back to lo lo right away. 
only issue i encountered on it was that i ovulated over the bc.. which resulted in extreme breast tenderness &amp; growth (for about 2-3 weeks) and weight gain. when this first happened to me i really thought i was pregnant, after a test came out negative i went to my obgyn and she explained that it was too low a hormone level to properly regulate my cycle. hence the ovulation. so then i switched to generic and ended up just switching back again. 
i finally stopped taking lo lo after the 2nd time i ovulated over the pills and got an iud. 
overall though, great bc"