"i was on loestrin for about a year and was always concerned about not having a period.  my husband and i tried just using condoms for a while, but after a few months i decided i needed to go back on some form of oral birth control.  my doctor suggested trinessa, which has a higher dose of hormones, so i will have my period each month.  after only a month of that, i have noticed extreme anxiety and mood swings, random spotting, loss of libido, and nausea.  i know it takes a while to get into my system, but i&#039;ve already gained 10 pounds. next month, i&#039;ll be switching back to loestrin. i had no side effects and no weight gain when taking it, other than not having a period. after being assured by my doctor it is safe and normal. i&#039;ll go back to loestrin."