no sweat my man. If you have any concern at all, just topdress a blend of the nutrients that you used to make your soil with, but go a little heavier on the K for flower (so increase kelp meal by applying a couple times through flower because it breaks down fast).
What i have found is that i've achieved up to 25% greater yields by topdressing with a "bloom mix" the first week of flower, and as it slowly breaks down during flowering, the plants get everything they need. I have actually just been buying a bloom mix (NPK = 3-7-4) and mixing ~1/3 cup with 1.5" of compost and topdressing each plant with that in that first week or two. that will carry you through to the very end guaranteed, and I highly recommend it. I was averaging about 12 oz per 600 watt, and i've seen consistent boosts around 14, and upwards of 16 (and I think I can get it even higher... hopefully i'll have more on that as time goes on). The bloom mix I use is made by Organically Done, but you can get others, another one that looks interesting is made by Dr. Earth which also contains beneficials. Good luck in your venture.
I will say, I found the Cootz mix (if that's what you're using) to be light in K, and this bloom mix has corrected this for me. What was your soil recipe?