Should I be excited?

Michelle • I`m 37, mom of 2 boys-14&10. Married to an amazing man. We are actively trying for baby #3. Hoping for a girl.
Should I get excited? It's been 10 years since my last child was born. Usually I start at least 2 days before prediction, I'm very regular with my AF, however, I'm now 5 days late. I've taken 2 tests both of which BFN. Should I wait a few more days or go to doctor?