hey there JMW, i count the veg stage usually from the first set of three pointed leafs because that's when the seedling specific care stops being necessary and the veg truly starts with its own techniques. But the easiest is really to to start week 1 from the first sprout. I count from sprout to the first three leafs. but really the most important thing is to count in a way that's useful to you. No clear answer here, but i hope this helps ! 🚀