Anyone else feel miserable?

I'm about 9 and a half weeks along and for the past 3-4 weeks I've been so miserable. Between the nausea and fatigue I feel like I can barely do anything. Not to mention I'm starting to have a hard time sleeping...getting up a dozen times to pee every night and my knee (which was injured in a car accident years ago) has been acting up. My doctor said joints become more sensitive when you're pregnant so I guess my knee is feeling it. I struggle just to get out of bed some days. I have no drive or desire to do anything. I was never like this...I used to be up at 6am everyday and was never someone who liked to sit around at home. Now I'm up at 10am and all I want to do it lay around. Anyone feeling this way?