birth control
"In my 20's I used several kinds of birth control, and this had the least side effects, so I stayed on it for about 5 years, then went off birth control and became pregnant. After pregnancy my OBGYN put me back on this birth control (9 years ago, age 28; used various brands based on insurance) and overall I didn't experience any negative side effects. It keeps my period regular (as long as I am consistent with taking my prescription on time each day), and I don't have acne issues.  I did gain a few pounds when I went back on it, but that is typical with any birth control. The only thing I have noticed in the last year (age 37 now) is some heavier periods and some cramps I didn't have before, but that may be due to my age. Hope this is useful."