After my last horrible period I decided that I would go on the pill. My doctor prescribed Mircette. I just recently lost 35 pounds and would hate to gain it back, and 2. I am waiting for my next period to start to start the pill pack. I will be using the Sunday start.
Weight gain is possible with any oral contraceptive.
Mircette would be no worse nor better than any other low dose pill in this regard. You will just have to see how it goes. Most people don't have much trouble on the low dose pills like Mircette. The number of unwanted pregnancies is highest during the first couple of months one is on the pill. This is due to errors in how patients remember to take the pill, not in the way the pill works.