Confused and trying not to be anxious but I AM

Okay girls so I mc and early pregnancy about a little less than a month. ago shortly before my first period we started trying again. Now for about four days now I have felt all the symptoms I felt the last time I thought it was a good idea to take a pregnancy test when I got a + but this time I feel worse --nausea, sick to my stomach, head ache, body temperature changes, exhausted, starving, and I am extremely moody. I don't want to get excited for nothing and I don't want to do anything to cause another MC and I also don't want to create anything in my head..this is the only place I've shared all this. Someone please give me some sound advice. Please, I'm starting to get anxious!!!