Explain if I can add more nvme drives

[RobTi]

Hi I have a gigabyte z690 gaming x ddr4 motherboard with one nvme (sn770) fitted and all my sata ports are in use, can I add another nvme to this board as reading up I am getting confused about losing sata ports adding extra drives ?
nvme ports

 

[RobTi]

Thanks all for the help looks like the next purchase will be an psi card later on when my current drive fill up