F&F- I'd be glad to :) ad I can give you me as an example.. See our urine is created from waste from food, minerals, liquids, disease, sugars etc that our kidneys process... The human fetus doesn't begin making urine until 11 weeks gestation, that's what amniotic fluid is make of, after 12 weeks the placenta filters most of that, but it doesn't leak through the mother's urine.. Now here's an example.. When I was pg with dd1 at 30 weeks I began getting itchy wrists and palms, I mean REALLY itchy! Then my ankles and bottom of my feet started soon after. I called my dr and she ran blood work on me, they took 12 vials of blood! I knew it wasn't normal. Turns out I had cholestasis. It's a disease of pregnancy that occurs when the mothers liver can't filter all the waste in her body due to the increase in pregnancy hormone, and so my bile was spilling out and settling under my skin theiugh my blood. the itching was literally bile making contact with my skin. They take urine samples every week, do ultrasounds every week... Anyway once diagnosed they only let ou stay pregnant 4 more weeks as the excess bile can cause a lot of damage to unborn babies. That's why my dd1 was born 4 weeks early... Anyway long story longer, even with my excess pregnancy hormones, which is what aliprintice says they go by, the gender of the baby was never detected. Even through all that blood and urine work. Also, even for live human who get gender screens like for the Olympics and paternity, the tests are very expensive. It takes a lot of work to sort DNA and map chromosomes.. So sending a sample of your blood to a company is beyond belief they can also detect an unborn fetus as well. Also, did you know that even parternity tests and lineage tests are only 99% and decrease in accuracy with each family member removed? And those are samples straight from the source they are matching up and they still leave room for error! So I would imagine the margin of error would be astonishing to a sample given to detect a person who doesn't even have a full blood supply yet!
"The way I see it, if a girl wants to be a legend, she should just go be one" - Calamity Jane" 1 Samuel 1:27