i am also 19 and been on yaz for a year, in 4 months i gained 20 pounds. over the time my mood just became worse and worse. it made me depressed and i advise you to change from yaz as soon as possible. i am changing tomorrow. my entire family noticed that i have became emotionaly and physically changed from this. Its even getting to the point were me and my husband would rather use a condom then use this birth control. i know several other girls on this pill who have gained 15-20 pounds in a mere 3 months. but try it for a few months and if you see the same side-effects switch as soon as you can.
girls condom birth control 4 months yaz hard time cramps 19 years nauseous first few days mood swings