We're having a GIRL!!!
This morning we went in for Mary's 20 week ultrasound and found out in no uncertain terms that our third child will indeed be a girl! We are incredibly excited, especially in light of the Lai family history of having children of only one gender or the other, but never both - and we were well on our way to having all boys (though we love them both beyond imagination!).
This brings me to my family gender theory (the Lai Genome Project)...
My eldest sister, Elsie, has three lovely girls. My next eldest sister, Marj, has three equally lovely boys. And while my brother Paul has managed one boy and one girl thus far, he has Tsao family genetics on his side. As far as the Lai genome is concerned, it's strictly one gender per family. Until now.
It appears that the key variable in the equation is the gender of the individual Lai family member contributing to the chromosomal makeup of the child. The two Lai females (my sisters) have either three girls or three boys. I, a Lai male, will now have two boys and one girl. My father, obviously a Lai male, has managed both boys and girls.
This leads to two deductions in my family gender theory: 1) Lai sperm, whether X or Y, show no signs of power struggles - neither one dominates nor is a better swimmer/impregnator than the other; and 2) Lai eggs cooperatively choose early on in their life cycle which chromosome (be it X or Y) they will accept into their domain.
Now the final proof for the Lai Genome Project lies in newlywed brother Joey...