How long after taking yasmin will it cause weight gain?
Your question is difficult to answer. Weight gain is a potential side-effect of Yasmin and not everyone experiences it. If you were to put on weight I suppose it would take around six months. If this weight gain side-effect of Yasmin is bothersome, you should discuss other methods of contraception with your doctor. See this link for an accurate and full list of Yasmin side-effects.