My endocrinologist is an expert in PCOS. He told me that if I was to get pregnant to continue taking met for at least the first 12 weeks. And to call him straight away so I can get GTT done again and see if I need to stay on Met longer. He showed me the results of a study where staying on met dramatically decreased the chances of miscarriage in women with PCOS. So I will definitely be staying on it!!!!