New to blood test for gender - thoughts?

K

My first pregnancy (12 years ago) I found out it was a boy at my 19 week scan. My 2nd pregnancy (4 years ago) I did not find out the gender and we waited, it was a girl. I’m pregnant with my 3rd (4 weeks now) and I’m wondering who has gotten the gender blood draw? Is that was it’s even called? lol. Is it at 10-12 weeks? If you did get it, was it accurate?

TIA