About to try ivf for the first time

Christina • I`m 40 years young. The mother of 4 and 1 step son. I have 4 beautiful grandbabys 3 girls and 1 boy.
We have our first ivf seminar. I'm 40 and have 4 adult children and my husband of 1 year has a 14 year old. My tubes have been tied for 20 years so ivf seems to be my best option. After this seminar I will be making a appointment with the fertility dr. For a consultation. What questions should I be asking?