Worked in a small town, all documents through the region. The accounta…

Worked in a small town, all documents through the region. The accountant filled out the sick leave incorrectly. It's hard to transfer the documents. I will send them back for correction. If I give birth earlier than expected and don't manage to submit the documents to the ZON, they say the sick leave will burn up and nothing will be paid. Is that true? How do I proceed? Has anyone encountered this situation, please provide accurate information.