wish u all the best for tomorrow.
What I have seen in this forum and comes for assumption that if status change to in process means its positive and sign of medical and PPR request.
In most of the cases after change of status they received the medical & PPR request. It means after full analysis of the application they change status for applicant knowledge.
Else if after changing status they start background check then one can cautious and make necessary arrangement to clear the same.
This is my views hope seniors may give more focus.