i've been on this med (28) for 4 months and have: gained 15lbs, s...

i've been on this med (28) for 4 months and have: gained 15lbs, severe cramping, mood swings, depression, loss of sexual interest, heavy bleeding, when i am on my period, bladder infections(when never before), my breast grew with the 1st month of use and the pain then was so unbearable that even now they are sometimes so tender for a whole week before my period starts that it hurts to shower! i say this pill is somewhat effective because i was bleeding months on end and so far this pill has somewhat helped; however, when i am on my period, the first 2 days are really heavy and recently i seem to be starting my period before i am done using the pink pills. . . i don't want to be bleeding abnormally, but i can not afford to be gaining more weight or feeling depressed all the time. . .