Does Althea Contraceptive Pills Increase The Body Weight?

hi doctors! Im using althea contraceptive pills for 3yrs,I would like to ask if there such thing "gained weight"when your using althea pills.Honestly i really gained a lot of kilos when i started to used this.And thinking to switch to another pill because I heard that there's a pill that wont make you gain weight. . .is it true?thanks anyway!