upping calorie while doing cardio??????

collingmommy

I am doing new rules of lifting and I am almost done with stage 1 and next week is my lifting break, I was going to do all cardio for 5 days this way I am still active, when I say cardio, I mean 30 minute walk (weather permitting) and 30 minute jillian michaels dvds, I currently take in 1600/1700 calories a day, so my question is should I take it up a notch? I usually burn roughly 200 on a walk/jog (30 miutes) and depending on the dvd, 250/350.. im thinking I wouldn't have enough to sustain me during the cardio week, so should I up it to where I am eating 1800? just for that week?