Question: how much weight should a pregnant woman gain in first trimester?
Answer: 1st Trimester Weight gain should be minimal in the first trimester (0.5 to 2.0 kilograms or 1.1 to 4.4 pounds). If you lose or gain a significant amount of weight in the first trimester (more than five to 10 per cent of your pre-pregnancy weight), talk with your healthcare provider for support.