I'm. In 26 week and have put a sudden 4 kg from last month to this month.. Previous it was a steady 1. Is it normal 😶

Please relax. Eat a well balanced diet, stay hydrated, avoid eating processed foods and fast foods, eat lots of fresh fruits and vegetables, stay active. Hope your thyroid levels are normal.
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It's totally normal. U'll gain most of pregnancy weight in second trimester.
Eat helathy. Stay fit. Tc