HELP! I'm starving 24/7!!

I need everyone's advice! I'm 8 weeks pregnant with twins I am literally starving 24/7! I can eat a full meal that is twice the size of my normal portion and still be hungry! I wake up every night in the middle of the night with hungry pains because I'm that hungry. NOTHING is keeping me full! Does anyone have any suggestions. I think I am going to make an appointment with a nutritionist. Has anyone taken a fiber pill while pregnant to curb the hunger?