Likely would have been a good idea to get this process going a little sooner, like when you were first ordering the ladies.

I'd go with either the Fox Farms or Botanicare products. You'll need different nutes for veg than you use for flower. Both of these companies offer a 'complete' system, to take you from seedling to harvest. (get the formula for growing in soil )

With Fox Farms nutes, it's a three part system. (Grow nutes- Micronutes - Bloom nutes) They come in three separate bottles. Not sure about the Botanicare system, but likely the same. Superthrive is a quasi-micronute, but do not overuse it. One drop per gallon means one drop per gallon. Some folks don't like the stuff, but I use it all the time for my vegging plants. (100% Fox Farms stuff for flowering)

Get a good soil, preferably without added nutrients, making sure it has perlite in it. For a newcomer, using stuff like Miracle Grow potting soil can get tricky. If you are forced to use the MG, always keep in mind that your plants are not going to need additional ferts for around a month, till the nutes that came in the soil are depleted enough to start your nutrient regimine.

The nutes you have (14-14-14) are ok as a temporary solution as a vegging nute, but you'll want 'tighter' control over your nutes. (what and how much goes in) Whatever the recommended dilution it says to use on your 14-14-14 nute, cut in half, then in half again. (young clones and seedlings are very sensitive to overfrtilization) Will give you a good starting point . If no results, wait till soil dries-out a bit, and increase the dosage. (up to a half-strength dilution)

Continue to read and absorb all you can, and grab some notebook paper and create a little grow diary. write down what you did, when you did it, and what the results were. Helps bunches at the begining when you can't remember what you did and when.
Do you have all of the equipment and room(s) set-up yet?