Add custom checkout fields below the terms and conditions in Woocommerce

So I am currently trying to build an e-commerce site using WordPress and e-commerce. Everything has gone perfectly apart from this final bit and maybe even the simplest part. I need to add two more check boxes below the terms and conditions and I have searched everywhere and the only thing that I found is a commercial plugin.

How to add custom checkout fields (2 checkboxes) below the terms and conditions programatically?

The two checkboxes below the terms and condition screenshot: