I start taking Loestrin24fe on march of 08 i got my period for the first two months. than it never showed up i went to my doctor and he said there is nothing to worry about just keep taking your pills. than one morning of this month i woke up with sick to my stomach and i throw up many times that day i knew it that wasn't just a stomach flue or maybe i ate something, so i bought pregnancy test and guess what it was positive i couldn't believe it now i am so mad at my doctor he should of done something switch me to another pill or anything anyway i have an appt with him this week and i am sure he will say it happened sometimes. please everyone check with another doctor before you take this pill.