Well these reputable sites hold that you are incorrect.
http://www.iflscience.com/health-and-medicine/women-squirting-during-sex-may-actually-be-peeing/
http://www.independent.co.uk/life-s...cience-behind-female-ejaculation-9987298.html
"It seems that larger volume fluid emissions, or squirting, are for the most part urine."
Now if you want to read the actual article it was published in the 24 December 2014 issue of The Journal of Sexual Medicine.
Thanks for those links and the reference to the original paper, Aardvark. I had a quick skim and I will read it all, and more. I am always open to new, credible, information and love it when I am wrong. Means I've learned something and grown.