First trimester blues

Is anyone else having the first trimester blues? I've been wanting to be pregnant for so long, but now that I am I'm so scared/ sad all the time that I can't feel happy, which makes me feel so guilty. 
I'm 6w 2d and so far I've had one very scary incident of spotting/bleeding which ended at the ER. We were fine, but now I'm having some brownish spotting which happens more after I exercise, and literally exercise is the only thing that makes me feel better right now and takes my mind off the fact that I am still not out of the woods. 
Sorry I seem to be rambling. I also don't really have anyone to talk to about this because most of my girlfriends don't know we are pregnant yet, and I'm still very nervous that I may miscarry. I also feel very fat and my skin is totally breaking out which is also getting me down. 
Any advice, positive thoughts, prayers or words of wisdom would be so appreciated!