State of California Department of Health First Trimester Screening?

Lindsey • A 6yo, 3yo and … Hubby had a failed vasectomy 🤣

With this particular one, my doctor’s office says that I won’t get to find out gender from it. Wtf? Why not??? Ugh?! What should I expect from this particular one? Anyone else have this specific screening done? (It’s not the harmony or Verifi)