birth control
"My experience was complete hell. I used to take Tri Prevefem which has different hormone levels and so on. The reason why I switched to this kind is because I missed 1 day of the pill because the first day I forgot to pick up my package (tri prevefem) from my pharmacy .. but they didnt have it the next day I went to go get it and I got this kind  (I thought nothing of it) So I doubled up. I took Sunday and Mondays pill to catch up like I was supposed to. The next morning I vomited everywhere. The hormone levels in this pack are crazy. I know I vomited because my body wasnt used to this hormone level. so just FYI if you switch contraceptives and you double up on the pills beware of the craziness."