Based in your scenario, it seem like you're following the steps in QuickBooks Desktop (QBDT. The steps are different but allow me to assist you in accessing your previous reconciliation in QuickBooks Online (QBO).
Here's how:
Go to the Reports menu.
In the Find report by name section, search for Reconciliation Reports.
Select the Account for the reconciliation report you want to view.
Choose the reconciliation period from the Report period dropdown.
Click on View Report.
To print, select the Print icon in the upper right of the report.