"i have been on loestrin 24 for a year and a half now due to heavy periods and severe cramps and i haven&#039;t had many problems with it. my periods have gotten lighter only lasting about 4 days and i have had little to no cramps. i never gained any weight and my breasts were never tender. though, one side effect that i did always seem to have was yeast infections. also, if the pill was missed or taken late, then it made me very nauseated and i had to miss class a few times. overall, it was a great birth control but i am now switching to ortho tri cyclen lo."