Is it quite normal to be absolutely exhausted in the really early stages of pregnancy. I am six weeks and I cant focus on anything at work. I have nearly fallen asleep at my desk today. I used sleep for about 8 hours a night and it was good quality sleep - now I am restless during the night, awake from 4am and really drained at work - so much so that people are starting to comment on how tired I look. is this normal and is there anything I can do to help?