Sneak Peak Gender Test

Br

So I’m 11 weeks and 3 days, today I went to a clinic to get my blood drawn to determine gender plus I got an ultrasound. The clinic uses the sneak peak kits and I was wondering how accurate those are? I want to announce the gender but I’m scared they could be wrong, my anatomy scan isn’t for another 2 months. I just hope I didn’t waste $170! 😩