Please help

Hi everyone I am new to growing I started these plants outside and was wondering how do I tell which one is male an female> I also have a picture of one plant that split into 3 stems what is up with that?
Please offer any other helpful advice...

Did your top get damaged at one point on the one with 3 stems?

Still too early to show sex it seems, but as previos post shows picks, its pretty easy to tell once they start to show. I saw an ant on one of the pics, look out for aphids on leaf bottoms, ants farm them for their honeydew, get a garden safe spray with pyrethrins or salts of potasium to kill em.

I've had two stems pop out of a seed, and heard subcools JTR is so prone to having two or three sprouts from one seed its easily googleable. I think its great, u start with multiple tops and never get a slowdown from topping. Hope u get females.

Do you have Powdery Mildew growing on them?