Anxiety about pregnancy. Not happy

I'm currently 6 weeks 3 days pregnant. This pregnancy was planned, but it happened the first month we tried and I honestly didn't expect that. We have everything in order financially and all of our family is extremely excited but I feel like something is wrong with me?

I'm absolutely terrified of being a mother and sometimes I think about it and start to cry because it's really happening. I had a rough childhood so I know some of my problems come back to that. I just have so much anxiety about this pregnancy that I try not to think about it too much right now since my emotions are completely insane and I've been really sick with nausea and just being uncomfortable and exhausted. I think all of the symptoms together plus my feelings have really got me down. I always thought I would have a motherly "feeling" when I got pregnant and would be extremely happy and excited. Will this go away in the second trimester? I see everyone else that is so happy and I'm just trying to survive? Any advice?