"so far i&#039;ve been on lo loestrin for about 2 months. pros: no mood swings, no weight gain, convenient to use, no pregnancy, no nauseousness, low estrogen. cons: period every other week (which sucks but at least it is not a constant period. hopefully by my fourth month my periods will be back to normal), breast tenderness every day (but not too painful) and occasional headache. i am very satisfied overall and plan to be on this pill for the next 2 years. it&#039;s great knowing the risk of a blood clot is so much lower with such a minimul amount of estrogen."