Eh sama lah, 15 weeks some of us dah rasa macam penuh perut even dengan singleton! Tapi kalau betul-betul rasa very bloated or uncomfortable yang tak normal, better check with your doctor just to be safe, they can confirm if it's twins or just the usual pregnancy bloating. A few of my mum friends who had twins dah tau by 12 weeks through scan, so your gynae will know for sure if that's the case. Jangan worry, banyak yang pregnant feel yang sama, tapi better get checked out properly lah