Starting IVF this month

Hi everyone!  My name is Chrissy i'm 35 from Boston, MA and have been TTC #2 for over a year and a half with one MC 12/2014. This month my DH and I have decided IVF might be the way to go. Today I started birth control and we have our first IVF appointment April 28th. Any tips or advice will be appreciated as this is unknown teratory and of course as you probably know we are nervous but excited.