Low energy, need a pick me up.

Patricia
Hey ladies, I'm in my 5th week, and although I've heard opposing sides on coffee consumption, I have had one cup per day in the last week since I found out I was pregnant. I would like to stop completely but I have low energy, and currently substitute teach, work retail full time, and occasionally work mornings at an office. What can I do or take to give me a boost of energy in the morning?