Feeling depressed

Am I the only one? I'm trying my best to "enjoy" being pregnant but all I can feel is depressed. The sickness has taken a toll on me not to mention the fatigue. All I can think about is i hate being pregnant but I'm already in love with my baby and can't wait to meet he/she. No one understand my feelings and my moods and I just feel so alone in this. I'm thinking maybe I just need to live through the first trimester and maybe things will get better. I don't want this depressed feeling as I don't want any negative energy going to my baby. Anyone have any advice? Please I don't have anyone to talk to.