"i started out originally on lo loestrin fe and switched to blisovi fe because the first one worked for me for the first few months but then my period became irregular. i put on 15-20 lbs almost right away and i thought it was what i was eating but i hadn&#039;t changed my diet at all. glad to know i am not the only one that this happened to. the irregularity of my period has improved but i am now getting 2 a month which is not okay. would not recommend and i&#039;m switching asap."