"i have been on loestrin 24 fe for about a month now. i just finished the first month now going onto the second.  it hasn&#039;t so much helped my period length yet, but it did take away the feeling of cramps which was nice.  my gyno said it could take up to 3 months for you to get your full effect.  so during this past month while on loestrin 24 fe my period was still 12 days, but i have hope for that to change in the next month.  loestrin is responding a lot better to my body than yaz did.  "