Report stage, also known as Consideration, is an opportunity for the whole House to consider what has been done during the committee stage. There is no set time period between the end of committee stage and report stage.
You can propose amendments at report stage.
If the bill has been amended at its committee stage, it will normally be reprinted before report stage.
If the bill has been considered by a Committee of the whole House (rather than a Public Bill Committee) and not amended, there is no report stage and the Bill passes straight to third reading.