Why me?!?!

This is my second pregnancy 8 years after having our first one. Well I'm five weeks haven't been able to see my doctor yet due to the holidays and them wanting me to wait another week to have my blood test done. Well I have a rash on my stomach and I've done everything to get it to go away. It calms down for about a day then comes right back idk what to do. Last time I had a rash I was 34 weeks with my first and I ended up being induced at 36 weeks due to my body starting to shut down. What should I do?????