Science tells us all ovum are female at the moment of conception. The sperm "transitions" the set biological gender only AFTER the initial moment of conception.

Well, here's the joke for you: his fetid EO stipulated gender "at conception"

i.e.: So, I guess that means we're all female now?

According the NIH: During early development the gonads of the fetus remain undifferentiated; that is, all fetal genitalia are the same and are phenotypically female.