Tri-Sprintec and starbucks

i have been taking Tri-Sprintec for about 3 months now and instantly i felt like i had gained weight however i thought it was my diet since for the last 2 years i had been drinking frappuccinos at starbucks about 3 days a week. I just thought hmm I guess it took 2 years to catch up to me. But now im not so sure, and in fact here is why since I have been gained so much I have been trying to see what I can change and Starbucks was the easiest thing since I really am not eating anything else bad. Since completely removing starbucks AT ALL from my diet I have MIRACULOUSLY not stopped gaining but CONTINUED to gain weight as i take the pill. That is JUST CRAZY, how is that possible!! I am now up to 122lbs. Aside from my pregnancy I have never weighed this much in my life. I should have gained weight 2 years ago when i started going to starbucks but actually i was a size 0-1 at any given time and continued to go to starbucks and never weighed more than 105. The only thing that has changed in the past 3 months is starting on Tri-Sprintec, and removing starbucks from my diet. Just to give you an idea of how much I have gained, I was a size 0, weighed 103 and now I can barely squeeze into my size 4 and weigh 120lbs on my BEST day. I DO NOT recommend this pill.