Sorry but I guess it's highly unlikely that the baby is yours in case she is pregnant. You said you'll find out in a few days. That means she's already overdue with her period for more than just a few days, otherwise she wouldn't suspect something. And that means that she got pregnant in under a week with you? You'll know after you visited the doctor, he/she can tell you the exact week...My partner is currently in Oz on a 14 day tourist visa and has a flight home to Cambodia booked in the 3rd of Jan 2018.
But still good luck! If you've got feelings for the girl then you might be able to find a solution, even if it means applying offshore...