Pregnancy weight gain

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Alright ladies I’m a FTM & I’m 14 weeks. I’m eating like a cow I feel like but haven’t gained a lb. I’ve actually lost 3 lbs. If this happened to anyone when did you start seeing an increase in weight? I’m scared I’m going to wake up and have gained 10lbs over night lol. Also, I was never sick during the 1st trimester 🤷🏼‍♀️