birth control
"I'm a person that constantly forgets to take her birth control pill. So I thought all of the side effects would be cancelled out by not having to remember to take them. I was wrong. Within the first month, I had literally NO sex drive. Within the second month, I became INSANE. The mood changes had me crying daily and arguing with everyone around me. I also started a light period that lasted for the next two months off and on. The worst part about it was that when I decided to not get the shot again, the side effects last for at least another 6 months or more. Plus I ended up gaining (within the three month period) about 30 pounds. Worse decision I ever made. My gyno tried to warn me about it, but I didn't listen. Seriously consider the pros and cons of this."