What Causes Weight Gain While On Femilon For Early Menopause?

hi , i m 34 yrs old n last two years i m suffering in early menopouse so my gynec suggest me femilon tab i taken for two month during dis i put on 4kg , i m worried abt cancer

my height is 5.6ft

weight 85

i hv cholestoile

n minar thyroid

i hv 3 kids

2 boys 14yrs n 8yrs

1 daughter she is 6yrs old