Is vaping with 0mg nicotine safe while pregnant (To help ease the habit)? The ingredients are: water, propylene glycol, vegetable glycerin, & flavoring

Not recomended. inhaling aerosolized chemicals isnt best for you or for the baby. Vaping is a new product in the market and the effect on lungs/babies are still not fully understood. I would use this time to kick the habit to ensure that you give your baby the full potential to grow without interruptions by potential stressors like smoke.