Transaction log file - Migration SSMA

I'm attempting to migrate a relatively large Oracle DB to MSSQL using SSMA however due to disk space constraints, I had to stop the full migration last night when it was 50% of the way through. Upon investigating disk space usage, I've found that the transaction log file is nearly 3x the size of the data files. Is there any way I can get this down? Would you recommend deleting the new DB and starting again from scratch? Would the Transaction log file have normalised in size if I let SSMA complete the migration? I've tried shrinking the txn log to no avail. Any help here is appreciated. Cheers Mark