Quitting smoking

Sarah • 23 and Expecting our first boy January 2, 2015!
What are some ways you ladies stopped smoking cigarettes when you got pregnant? I am trying the e cig vapor and it helps a little but I still crave cigarettes. I don't want to eat all the time cause ill gain weight unhealthy. I just need some help. Gum hasn't helped either or hard candies. I've tried everything I can think of. Please help if you can.