I hope tt all our babies will b heathy..tts the most impt thing... Try to drink preggy milk everyday lor..I'm drinking 1 cup of friso mum everyday..it's recommended serving... cause hasn't been eating heathy food..heehee...i certainly hope so, sherin. so far, katsg has the heaviest baby ba. while mine is the lightest. but i juz googled and on average, at 20 weeks, babies weigh ard 286 - 400g. i oso read that babies will gain weight quickly from 3rd trimester onwards.