Pancreatic cancer at 43

Hi all, don't really know where to start.....I'm lost, scared, confused and so down.

I was taken into hospital 2wks ago with jaundice, told i had a blocked bile duct easy fix fine....whilst waiting for the ercp had mri & ct. Was told that they found a lump on my pancreas & it was more than likely advanced. I had no symptoms other than the jaundice so really shocked & I know this is one of the *** ones. Had my ercp Thursday & they took the biopsy, since then I have lost weight dramatically & now experiencing pain. I have 3 beautiful young boys and just met the man I want to spend the rest of my life with & it could all be gone in a matter of months! How do you tell your kids mummy's gonna die, im so so scared