early pregnancy after miscarriage

I'm 5 weeks pregnant, my period usually comes at day 33. I had a miscarriage 3 months ago (I was 9 weeks along). My last pregnancy, all I ever got was a faint line, but I had a miscarriage. Should I be worrying about this time around and having only a faint line again? I'm going to the doctor today to get checked out. So far no spotting!! 😂 Thanks!