Almost 10wks pp with twins and stomach still looks about 4mths preggo

Myia • 28 year old first time Mommy with twin boys born Nov 14th 2016..mommy so in love with Mekhi & Malik❤❤❤❤
Is that normal..even my belly button it still sticking out but when i lay down my stomach is flat...does that mean the weight in my stomach is all fat ??