"i have been on loestrin for about a week. the only side effects i&#039;ve had have been irritability/mood swings and anxiety after taking the pill. i also noticed an increase in sexual desire, but less of an ability to obtain orgasms.  in addition, just mild headaches. however, i&#039;m ecstatic that i have not experienced any bloating or weight gain the first few days of taking the pill. when on yaz and yasmin i experienced that immediately almost with an addition of 8 lbs weight gain. i&#039;ve been able to actually lose weight in the last week and my desire to exercise still exists. on yaz/yasmin i was so relaxed - which was great. however, i felt more lazy and was not as motivated to exercise. so far, i would choose loestrin over all!"