First positive test ever.

Sierra. • Pcos, ttc for 2 years , starting metformin.
Hi guys I have pcos and have grown unnaturally accustomed to negitive pregnancy test results. Today was different for once it was positive. But now I'm afraid of going to the doctor and having them tell me I'm not. I've been feeling nausea. And have vomited a few times  in the past few days.  I am 7 days late on my period. Is it normal for me to be scared about the doctors? I just don't know how many more negitives I can have before I just lose all hope.