I am 34 weeks pregnant,I have taken GTT test in 32nd week,as resulted in fasting 235mg/dl and after 2hrs sample ,resulted 147 mg/dl.So,now using metformin 500mg as advised by endocrinologist.Now after 2 weeks self checked with glucomerer as resulted in fasting 92mg/dl and after 2 hrs :116mg/dl.As my doubt is I haven't taken metformin during the test. So,whether my body controlled by drug or it naturally decreasing my sugar levels.