Hi, my girlfriend quit birth control around june-july, and hasn't had her period since, and its now almost november, she's gained weight, and developed stretchmarks but we don't think she's pregnant, or else she would have been getting sick or we would have felt some kicking or something....Then recently she's just been having so many mood swings, i'll get in the car and i'll say something..That shouldn't make somebody mad and she'll get an attitude, and then the next minute she's asking me how my day went..It's getting frustrating especially when I don't do anything, and I feel like it's going to ruin our relationship...Does quitting birthcontrol do all of that...I think she was on like..Yamen or something with a y like that...Please respond