You'll have your liquid phase, your puree stage, and the stage where you slowly introduce foods back in. Each doc is different with his/her requirements, so check with yours as some docs have you on clears in the very beginning too.
Also, you may be a little emotional at week three-ish (this varies for everyone, and some don't even experience it), some have a decrease in energy until their bodies figure out what Mack truck hit them, and some sail through. Take everything in stride, post here...we are here for you, and you will do fine
WELCOME!