Aww first time mom anxiety, totally get it! Pero matubig na tyan at normal baby size ay parang magkasama talaga sometimes, pwede ka nang mag-check with your OB para malaman exactly kung gaano kalaki ang fluid mo, kasi may normal range lang talaga and they'll know best kung kailangan i-monitor mo closely or kung okay lang. One of my mum friends had the same worry at the doc said it was just her body type, pero important talaga na ma-confirm through ultrasound para peace of mind mo!