All life started as a unique intelligence either male or female.
There is not now, nor ever was, any choice nor negotiation as to gender.
We all were in the beginning either a male or female intelligence and from thence remained either male or female.
Our intelligence was born into either a male or female Spiritual body, which grew to maturity in our Pre Mortal Existence.
We came to this earth for our Spiritual body to receive a mortal body, again either male or female.
As we were from the beginning, and will be through the eternities.