[Auntie Dem]

I took the Ancestry test. It turns out that the man I thought was my Dad was not.

Your dad is the man who raised you--not the sperm donor who got your mom pregnant. No offense to sperm donors in general.

[chud]

Your dad is the man who raised you--not the sperm donor who got your mom pregnant.

What if the biological father (or "sperm donor" as you're calling him) doesn't know that he has a daughter out there?
Consider a scenario where a married woman has a fling while out of town and then comes home to her husband and fools hubby into thinking he got her pregnant so he will raise the child.
It happens.

[bimboeruption]

Yes, Auntie Dem, he is.

The sperm donor knew my mother was married and screwed around with her anyway. They were 2 pieces of sh^t.