"i am currently 19, in good health, not taking other medicines, have been tested negative for std&#039;s, and sexually active with one partner only. i am taking birth control mainly as a contraceptive and partly to regulate my irregular periods. i have just completed my first week on tri-sprintec and have not experienced any significant changes. i have not had any mood swings in the past week, nor experienced drops/spikes in libido. no significant weight gain in this past week, however i do feel my sports bras tightening up. (hopefully my breasts are growing?) no breast tenderness. no change in appetite. complexion looks better if not the same. i will continue to share my experience with this pill. currently very happy with it. "