Quitting smoking

I just stopped smoking 3 days ago. I was smoking a pack a day but then I found out I was pregnant. I'm almost at 5 weeks and don't want to risk any complications. However i have used a vape a few times since putting down cigarettes. Has anyone heard anything about vaping while pregnant? I don't plan to continue to vape but it is helping me stay away from cigarettes at least for these first few days. Advice please!