First grow, autoflower w/ pics. Need some quick help on bloom nutes..

I have an low life ak47 x NY diesel plant growing. Just one plant under 3x26 watt 2700k CFL's and 1x26 watt 6500k CFL. (had it under 4x26 watt 6500k CFL until it started blooming). Been watering about every 4 days.. pH is sitting around 6.8-7.2 and temps between 75 and 82... About 5 days ago she developed pistols, showing herself as a female . She is 26 days old... Do you think she looks healthy?? I feel like I have it all pretty much under control, except I'm not positive on the nutes.. I'm using MG Organic Soil (not by choice, all dept. stores had around here) and haven't added any nutes thus far, just distilled water.. I ordered some FF Big Bloom off the internet that should be here anyday.. When do you think I should start giving that to the plant? I know I should experiment and try new things, but I don't want to burn my girl, and haven't been able to find anything on the internet about adding nutes to MG organic w/ an autoflower, so any input would be greatly appreciated THANK YOU!!!

I started my autoflower on bloom nutes 2 weeks in. Right when she showed signs of flowering, I added 1/3 strength.

Here was my girl at 25 days old from seed (for comparison). She was a different strain than yours (Snowryder).

I have been giving her nutes about every week to 10 days. I always burn her a little then back off.

I also use seaweed. If you are interested in that, check my links.