amend question

My wife filed separately (opposed to jointly on accident) and I have not yet finalized my taxes through Turbotax. She has received her refund and we realize for a variety of reasons she needs to amend her taxes so we can file jointly.

 

My taxes are more complex as I have a job with salary and also earn separate income being  self employed. The amend 1040x form seems too simple for my taxes (expenses and such) and being that I haven't filed yet what is our next step?