birth control
"I have been on for 1 month and a half.  My period lasted for 10 days, then I came on again in the same month for another 10 days. That was all new to me. Sex drive has increased. My period is still irregular so I'm waiting on my next period.  Slight headaches and I feel sick sometimes. This is my first birth control and I haven't been on it long. Things may change. Not sure."