You may see a decrease in side effects just as with any drug after 2+ weeks, but if it's been more than that, you may try another pill altogether if you don't like what it's doing to you.
There's nothing I can do to decrease that ?
One word: hormones.
Anytime you take hormones of this nature, you can see things such as an increase/decrease in sex drive, nausea, emotional issues, etc.