1. Create a gift query
2. Criteria:
(Gift Information, Gift Type equals Pledge
and Gift Information, Pledge Balance greater than 0
and Gift Information, Gift Date between [1st Date Range])
OR
Gift Information, Gift Date between [2nd Date range]
3. Save the query

4. Include the query in the Gift Detail and Summary Report
5. Set the Date filter in the report for "Include all Dates"
6. Adjust all other settings in the report parameters as desired
7. Run the report