Going onto next food stage?
You basically go by the timelines, but if you try something and have problems, don't be afraid to go back a stage for a while. Listen to your tummy, it will tell you when you are ready. And watch for specific items that cause problems. One of the common ones that can be an issue is egg. Just be prepared to be fine with something one day, and not the next. And if something doesn't agree, wait a while and try again. Some things will never agree with you, other things just need more time.
Cathy