got my positive, but keep taking tests... worrying

R
Anyone else get a positive test but keep taking them?! My husband and I had been trying for 1 1/2 years for baby #1, I got a positive but now I don't feel like it's real. I keep taking tests because I'm so worried it'll be negative! 
I'm having all normal symptoms, sore chest, bloating, fatigue... I guess I just don't feel like it's real. 
Dr. wants me to wait for my first apt, I estimate that I'm about 6 weeks. I'm so anxious for my first appointment!