Super nervous

I got a positive pregnancy tests at home and I want to schedule a doctor's appointment ASAP but I'm nervous too because with one of my children I got lots of bfp at home but at the doctor's office it came up negative because I was too early n HCG was low I've tested positive early again glow says I'm 4 weeks the first time this happened the doctor told me I may have had a miscarriage I really don't want to go through that fear again so should I just wait a week or 2 or just go