Issue...Help A Brother Out!

okay guys, so my grow was looking absolutely marvelous in DWC Hydro and a 400watt MH...but all 6 turned out male!!!! AHHH!!

I was just wondering if it may have been human error that caused this? I nurtured my plants very nicely... they looked great! So was it me or is this just bad luck? Hopefully i don't have to be paranoid about me losing another 3 months for a male grow! haha


here's the nutes i was using just in case that's helpful.

Veg-B.C Grow
B.C. Boost
Thrive Alive
MagiCal
Sugar Daddy
All Technaflora nutrients

Flowering
B.C. Boost
B.C. Bloom
Awesome Blossoms
Thrive Alive B-1
MagiCal
SugarDaddy


let me know if there's any reason all my babies went balls on me!!

probably just bad luck, thats why I buy only feminized seeds online. I dont feel like wasting my time (or electricity) growing from seed for 2 1/2 months before finding out they are all males or even all but 1.