First and foremost, this is my first grow so I'm definitely learning a lot as I go. I just switched my plants into a 12/12 light cycle today to induce flowering. I had been running a 18/6 light cycle for about 8-9 weeks, and now the plants are between 15-18 inches tall. I'm starting to flower in order to make sure I don't overgrow my tent size. I am attaching a few pictures of my plants and I was hoping you guys could help me determine the sex of them. One is definitely a female from what I understand, but the other two have me stumped. I am keeping my eye on the two I'm unsure about, but it would be nice to have an idea at this stage if they're actual male or not so I can take action. If they are, I figured I'd get some autos and toss them in with my other plants while they're flowering since I've been led to believe light cycles don't matter much for autoflowers.
Here are my plants:

Any comments on my plants are welcomed I want them to be as healthy and happy as possible!

This is the plant that I believe is a female. I see the little white hairs coming out and that's what made me think this one is okay.
The others:


Here is another one of the plants. This is one I'm concerned about being male.
The last one:


I'm concerned this last one is a male as well...
Thank you for any and all help!
Here are my plants:

Any comments on my plants are welcomed I want them to be as healthy and happy as possible!

This is the plant that I believe is a female. I see the little white hairs coming out and that's what made me think this one is okay.
The others:


Here is another one of the plants. This is one I'm concerned about being male.
The last one:


I'm concerned this last one is a male as well...
Thank you for any and all help!