Hay anak, 24 weeks pa lang kaya don't worry, maraming moms sa circle ko na ganyan din ang experience at biglang tumaas ang weight in the third trimester! Kailangan mo talaga mag-focus on eating nutrient-dense foods nang regular, laging may protein, healthy fats, and carbs sa bawat meal kaya try milk, eggs, fish, nuts, and rice; one of my friends nag-gain ng 8 kilos in just 6 weeks pagkapasok niya sa third trimester. But honestly mamsh, since it's your first pregnancy and you're concerned about the weight gain and tummy size, best to bring this up sa OB mo next visit para ma-check kung okay ang baby at kung may specific advice siya for you. Eat well and rest well, okay? You're gonna be fine!