Doesn't feel real

Im 21 weeks pregnant and im showing already. Baby is moving and everything is right on track, but i just dont feel pregnant. Weird huh? Some days i just dont grasp that i am pregnant again. Seems so unreal to me. Like it hasnt really hit me that im gonna bring another little boy into this world. He was planned so its not like im in denial. Hopefully ut will become real to me soon.