Most personal trainers and fitness leaders are taught to create fitness programs that include 3 or more days per week for exercise. Did you know that for a new exerciser, it is more beneficial to your exercise adherence (exercise stick-with-it-ness)to only begin with two exercise sessions per week?
It's true. Exercise psychologists suggest beginning with one or two days and add another day over time. I suggest, based upon experience as a trainer myself, to add exercise only after you have enjoyed one month of success with two days/week.
So take a breath, you don't have to change your weekly schedule THAT much to accommodate for two exercise sessions. Once you get the hang of it and begin to enjoy it (and believe me that does happen) you will WANT to add more time to your schedule.