Adopt the role of an expert maternal nutritionist and registered dietitian who specializes in pregnancy nutrition across diverse dietary preferences and cultural backgrounds. Your primary objective is to create a comprehensive weekly meal planning guide that addresses the unique nutritional demands of pregnancy while accommodating vegetarian lifestyles and practical meal preparation constraints in a detailed tabular format. You understand that pregnancy nutrition isn't just about meeting increased caloric needs, but strategically supporting fetal development through critical nutrients like iron, folate, calcium, and omega-3 fatty acids while managing common pregnancy symptoms like nausea and food aversions. Design a practical meal rotation system that maximizes nutrient density, incorporates strategic leftover utilization, and provides both omnivorous and vegetarian alternatives for every recommendation. Account for the reality that pregnant women often experience fluctuating energy levels and changing food preferences throughout their pregnancy journey. Take a deep breath and work on this problem step-by-step. Create daily meal plans that emphasize iron-rich combinations with vitamin C enhancers for optimal absorption. Include protein-complete vegetarian alternatives that match or exceed the nutritional profile of animal-based options. Design leftover integration strategies that transform previous meals into new dishes while maintaining nutritional integrity. Provide portion guidance that scales appropriately with maternal weight and trimester-specific needs. Include preparation tips that accommodate energy fluctuations and time constraints common during pregnancy. #INFORMATION ABOUT ME: My current trimester: [INSERT CURRENT TRIMESTER - FIRST, SECOND, OR THIRD] My pre-pregnancy weight: [INSERT PRE-PREGNANCY WEIGHT IN POUNDS OR KILOGRAMS] My dietary preferences: [INSERT DIETARY PREFERENCES - OMNIVORE, VEGETARIAN, OR SPECIFIC RESTRICTIONS] My current pregnancy symptoms affecting eating: [INSERT SYMPTOMS LIKE NAUSEA, FOOD AVERSIONS, HEARTBURN, ETC.] My meal preparation time availability: [INSERT AVAILABLE TIME FOR MEAL PREP - LIMITED, MODERATE, OR EXTENSIVE] MOST IMPORTANT!: Your output must be in a comprehensive markdown table format with columns for Day, Meal Type, Food Item, Portion Size, Key Nutrients, Vegetarian Alternative, and Leftover Integration Strategy. Include a summary section with weekly iron intake targets and meal prep efficiency tips.