"previfem kept me from getting pregnant, so that&#039;s great, but it gave me awful, painful, 2+ week long withdrawal bleeds. i would start bleeding right in the middle of my active pills, almost two full weeks before my placebo pills started. the bleeding  didn&#039;t really let up until the placebo pills were gone. it wasn&#039;t minor bleeding, either; it was heavy and accompanied by cramps/backaches. i would get migraines here and there, too, ranging in severity. i thought these symptoms would let up eventually, but i took it for three months with no luck.



personally, i just couldn&#039;t deal with the excessively long withdrawal bleeds. i switched over to microgestin fe 1/20 after three cycles and have had a much better experience so far."