Can you unlock your iPhone using an iPad Pro

No, you can’t unlock a disabled device from another iPhone/iPad - but as you have already marked this question as “solved“, can we presume that you have discovered this already?

For future reference, if you have forgotten your device passcode, or it is disabled through using the incorrect passcode, this is the process that you must follow to recover access:

https://support.apple.com/en-gb/HT204306