Quick question

We have been trying to conceive for almost a year will be a year in April and I got a positive test Saturday night/ Sunday morning the lines were faint so I got a clear blue today and it said positive. According to this I'm 3 weeks and 5 days and was wondering if I need to make a doctors app to get blood drawn/ confirmed. Obgyn's don't see you where I'm from until 8 weeks. What do you guys think?