Suja Juice Cleanse...safe!?

I've done a Suja 3-day juice cleanse before I was pregnant and am wanting to do another one now. I was out of town for the weekend and ate lots of Junk and am not feeling great! Has anyone done a juice cleanse while pregnant? Is it safe? I will probably just do a 1-day cleanse this time because I don't want to cut too many calories for too long. Thoughts?