Feeling Confused and Sad

Kristin
Took a pregnancy test 3 days ago and I  there was a vvvfl when I held it up to the light. Took another one this morning and nothing. Totally negative!! I'm 35 and want a baby so badly! I even had a dream last night that I took 2 tests and they popped up positive right away and I cried with joy. 
I have an apt Wednesday to see my Thyroid Dr. He's going to do blood work as always. Is it even worth it to have them add a pregnancy blood test to it?
I feel like I'm having symptoms but now I'm wondering if my body is just believing I am because I want to be so badly. 
Feeling down today 😢