Blood test to find out gender

Bri • 🎀 Braelynn’s mommy 🎀 ✨2/5/18✨

I'm supposed to get a blood test when I'm 10 weeks (2 weeks from now) to find out the gender. Are these tests usually accurate? Everyone has been telling me it's odd that I will be finding out so early and that it might not be correct because it's so soon.

Edit: thank you ladies for your responses! You guys are awesome.