Pregnant and scared

I just found out im pregnant well got a positive test i havent had a period for 2 months now. I havent been able to carry since i got lupus 3 years ago i havent been able to carry and i have had 4 miscarriages all under 10 weeks along but i was also addicted to narcotics cause of it so now i been clean for over a year and im so afraid the same thing is going to happen again like it always does idk what to do i want to wait a few more weeks before going to the dr i dont want to find out im only 4 wks i want to wait i want this baby more than ever