Tricks for unhealthy cravings?

Mandy
I'm normally a coffee addict and I've stopped drinking it all day. I only have my one cup in the morning and that's it. And coffee's not even the problem: I'm craving fountain Mountain Dew! Specifically fountain pop, not bottled! It's constant and driving me insane! I haven't drank pop in years, and suddenly I feel like I'm going to die if I don't have it!! Any tricks to curb the craving?? I'm only about 7 weeks so I'm trying to be super careful. 
Update: my husband pointed out that he has Mountain Dew flavored vape. They're nicotine-free, but are they safe during pregnancy