"i&#039;ve been on tri sprintec for 3 months now and noticed sickness and nausea the first week of taking these pills. then it got better but i still feel a little sick sometimes in the morning. i never had bad acne but i did notice it getting better after taking these pills. i noticed i went from barely a 32 c cup to a full 34 c.  during my period my breasts get slightly smaller then go back to normal when its over. i used to have a 6-12 day period, now it only lasts 4 days. i am 122 pounds and i maybe gained 4 pounds when taking these pills. i&#039;m 18 and these are the first pills i tried but i will be getting on another kind of birth control in a few months to have less side effects. otherwise its pretty good."