2 weeks veg or 5 weeks veg? using ghe 3 part

hi all just a quick Q
i am using ghe 3 part
i planted a seed 5 weeks ago in rock wool
week 1 no nutes in dark
week 2 2.5 ml of all 3 nutes lights on 18 hours
week 3 2.5 ml of all 3 nutes lights on 18 hours

week 4 7ml ml of all 3 nutes lights on 18 hours
week 5 7ml ml of all 3 nutes lights on 18 hours

so have i vegged for 2 weeks or 5 weeks many thanks

Have you used this GH calculator ?

http://www.genhydro.com/calculator/index.html

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