"i have been on various types of oral contraceptives for years and just 1 month ago switched to loestrin 24.  i have had no noticeable side effects differing from other bc pills.  however, i did not have a period this month!!!  after being six days late and worrying that i was pregnant, and all that comes along with such a huge life-change, i took a pregnancy test. negative. i can not worry every month whether i am pregnant because i may or may not have a period with loestrin 24 fe."