"i am so glad i found this site and saw other people&#039;s experiences.  this drug works to prevent pregnancy, but i have a week with a light period, then a week of a normal period.  i have also been experiencing extreme mood swings.  i thought it was just me and the stress factor of having 3 young children to keep up with and that i am homeschooling the older ones.  something just kept telling me that it was the birth control doing it.  i will be calling my dr. in the morning and switching!!"