Hi, Katie - sorry to welcome you to the club. :(
I have a bouncing bubbly HEALTHY toddler who was diagnosed/treated in infancy. Do a search for my posts with your default set to the beginning of time and you read right along with everything I experienced during our stage III intermediate risk protocol. At the time it was the standard treatment protocol for the COG hospitals but that was 2 years ago & it has changed a bit. Are you stage III? If not, at least my baby tips thread should help.
Don't get stuck on the protocol...they are just guides. Your little one will set his own timeline with regard to when he's ready to bounce back from chemo and start his next round. Set backs and changes become the norm. Be prepared to live near the hospital (within an hour of) for the next few months. It stinks, but trust me...treatment now is easier with a baby then treatment with a toddler. I'm hopeful you caught it early. :)
In general though, we adhered to the timeline. The first round of chemo meds may be different from subsequent rounds so the level of nausea and neutropenia may vary. You'll start to detect a pattern though so keep notes so you can try to prevent the nausea with the zofran.
Stock up on onesies to contain central lines and hard plastic toys/board books that can be wiped easily with a bleach wipe. Your baby will amaze you...he'll still want to play and cuddle and giggle. He'll give you strength. BEST wishes!