I got Peanut Neutered at 4 months, so at the time I didn't have them pull his teeth I wanted to wait to see what was going to happen..That is GREAT you are doing it at the same time!!
Peanut took his neuter sx really bad, The day he came home he was completey out of it! He was shaking and sore and just not him. I let him sleep with us so he didn't have to wear his cone and I could keep and eye on him He was very uncomfortable..The next day he just slept...still didn't want to eat or move for that matter.. I think about the 3rd day he was acting normal.I just had to baby him
Some dogs take it well and some dogs don't.
If you can try to be there for him as much as you can...you never know how they will react to the sx