Good to get to sleep. Seeds come in two forms, regular and feminized. Autos are feminized. For photoperiod feminized you are almost guaranteed to get all females (99.9%) or so. The trade off is that the way you make feminized seeds they are a little more likely to react to stress by going hermie.
Regular seeds are produced naturally from a male and a female parent and can produce either male or female plants. Males are more rare than females and you could go thru many seeds before you actually get one. For cloning, you take one clone early from regular seed plants and as soon as it is rooted in dirt you set it to 12/12 and it will tell you the sex of the plant. That way you don’t waste time making male clones and can also find males in your grows earlier.