Blood tests and gender

Kayla • 17 and proud to be a teen mom. I wouldn't change it for the world! He is my little blessing❤️
got blood tests done at 8 weeks, not sure why tho, they never said. I have a gyno appt next Friday and I'll be 12 weeks.... Could I ask to see if they can tell the gender from the blood tests or will I need to get more done?