Took out a loan on my 401K, and unexpectedly left the company

Looking for some advice, please. Last year I took out about $10,000.00 from my 401K. I recently (unexpectedly) left the company for a much higher paying job,

I either need to:

A. Pay off the loan before April 30th. I don’t have the money to do this so I guess I’d need to apply for a personal loan?

Or

B. Offset the loan and be prepared for a 1099-R. Curious as to what I’d owe at that time.

Lesson learned. Definitely won’t be doing this ever again.