17 weeks.. is he growing?!

Kayla • Christian🙏🏻wife💍baby boy coming June 2018!💙dog mom🐶

Why am I not showing at all at 17 weeks 😩 does that mean my baby isn't growing like he's supposed to?! This is my first pregnancy and when I go to the doctor he's measuring great but I haven't grown at all and I've only gained 2 pounds! Is this normal?!