can I get the gender blood test at my first appointment?

Destynee • PCOS • 2 natural born • pregnant with our letrozole baby🤍
My first baby appointment is March 9, I'll be a few days short of being 10 weeks. Can I get the blood test that tells me the gender of my baby? I know it's extra but my mother wants it done just as bad as I do since it's her first grandchild so she offered to pay the extra $100 it costs. Will my doctor let me get it done then? I'm not sure how it works.