You are just now getting to the second node and like most newbie beginners you already have the wrong calendar days on your grow . Remember when you first put seedling in soil you don’t start counting until now once you see the first set of three fan leaf pattern . So you really are in week one honestly , now if you don’t learn to PH your water , this will go south real fast , so you will need a PH tester pen and a TDS pen for PPM readings , very important ? But if you not feeding the plants , you don’t need cal mag just yet . So now you just seeing the first set of signature leaves growing out and that’s great , they are doing good , but each node will have an odd number of leaf on each branch , example , first set ( 3 ) , than your next node will have 5 leaves , than 7 , than 9 and maybe 11 depending on the strain if it’s sativa or indica . But if you plan on feeding you want to wait until after the 7 or 9 leaf fan leaves grow out and if you want to top that will be a good time to top also , cause the roots will start becoming establish and if you don’t see progress above the soil physically , than something is definitely going on underneath the soil , so don’t get impatient or over water . So this is actually week one in vegging now you can see the 3 leaf pattern leaves growing , so it’s safe to say this is week one of vegging . But the same principle goes once you finish your vegging and go into flowering , you don’t count the first two weeks after you switch the plant over into flower , that will be your pre-flower transition time to switch not only your lights , but to transition your plant from grow nutrients to budding nutrients , many make that mistake also , I’m guilty as well . But once you switch into flower , don’t make the mistake of changing your nutrients suddenly from grow to bloom , you must transition by adding bloom with grow but taking ah little grow nutrients out and adding ah little bloom nutrients , for example , say you feeding one gallon of water with nutrients at 1 ml per gallon of grow in veg , your first feeding going into flower will be the full 1 ml of grow but adding 2.5 ml of bloom , than next 7.5 ml of grow and .5 ml of bloom , than .5 ml of grow and 7.5 ml of bloom and than 1 ml of bloom and 2.5 ml of grow , than next feeding should be no grow and a full 1 ml of bloom , this way you don’t stress the plant in transition and it stays very healthy with no definicies , than you should be I week 4 of flower where you max out your ppm to about 1200-1500 depending on how much your plant eats and your ph should be 6.2 -6.5 , now if you gone used CO2 , make sure you stop CO2 in the second week of flower doing transition so you don’t get moisture in your buds and cause bud rot , hope this helps and keep us updated on your progress , it’s many will love to see your success and how you progress in your grow …keep it green , organic and happy smoking !!!