She looks like she is doing well... There really is NO exact time to keep a girl in Veg... It all depends on how big you want her to be in the end.... Personally, from clone, I dont think my ladies see more than 3 weeks veg time total before I flip them.... A good rule of thumb is this..... Measure from the top of the pot to the top of the plant... If it is about 18 inches tall, I top it, let it go for another few days, then put it into flower.... By the end of their stretch in flower (about week 3 or 4) they are about 5 feet tall from the top of the pot.... This is because I cant have them too tall as my ceilings are just normal height.... Remember, your girl will minimally double, but most likely triple in size during the stretch.... So judge your veg time off of that... You dont want 7 ft plants with 8 ft ceilings.... Everything would be jammed into the lights.