My iPhone 14 does not have a SIM card tray. What do I do?

Contact your carrier.

That's correct, the iPhone 14 sold in the US. Does not have a SIM tray.

So basically, it’s support only Esim card,

that you can, you should go to your carrier and they gonna convert your physical sim into an Esim .

I need to transfer the phone number into new device how to get Sim card