Way too early to tell 😄 At this stage it’s basically two cotyledons and its first true leaves. There are no sex characteristics to look at yet. If it’s a regular seed, you’ll have to let it grow until it starts showing preflowers at the nodes. For now: 50/50
If you bought feminized seed from a good breeder/line. There is a 99 percent chance that it will be female. Feminized seed still has a 1 percent chance of producing a male plant though.