Help! Ice Eating Problem

I Have A Bad Ice Eating Problem. Been Eating It Since I Was 12 lol. But seriously I'm anemic and my iron is really low to the point when i eat a cup of ice it make me weak and would put me to sleep for hours. The bad thing is I'm 25 weeks pregnant and it seems as if it has gotten worst. My energy is gone. People say ice is just water and it won't harm you but it's a habit that i can't get rid of. I want to stop for the sake of my baby health at least but dont know how. I'm a real life ice addict. The sound of ice even makes me jump up and eat it. I possibly eat like 25 ice trays a day. I'm being so serious. What can i do to help me stop.