Alright, your plants will def. thank you later! good job!
If you plan to transplant, hopefully you're allready good to go as far as a larger sized pot... You're still a week or two away from wanting to feed nutes, so be patient... don't jump the gun on that!! I'm sure the soil you bought has enough nutes in it to feed the babies for another week or two...
Look at the reccomended ammount (if the bottle says mix 1 tablespoon per gallon, mix 1/4 tablespoon per gallon the first time, 2 tablespoon = 1/2 tablespoon, etc...) Whatever it is, mix it to a 1/4 of that per gallon of water.. If they react OK the first time, you might bump it up to 1/2 the recommended dosage.. Just make sure when you initate the nutes, you keep an eye out for the leaves burning.. If you see that, you need to flush them w/ water immediately.. x2 or x3 the size of the pot.. 1 gallon pot, you would want to flush w/ 2 or 3 gallons of water..
Looks like you're well on your way to having a decent grow.. Start a journal, post the link here and i'd be glad to keep an eye on how things are going and help you w/ any problems you might encounter...
Once again, good luck, and happy tokin'!!