Blood work, backing out and opinions.

Hello Ladies!

My first fertility specialist app is coming up very soon! 11/19.

We are 9 years in trying with some basic test over the years. Some mentioned issues but not certain was PCOS and 1 blocked tube.) I have periods every month and positive opk. (Clockwork)

Question is.. When I go to our first appointment what blood test do they do/check? She also said they'd do a transvaginal. (I am predicted to ovulate the day we go)🤔 will that help?

All and any info will help please!? I'm getting cold feet!