Dear Ms. Sikora,
Thank you for posting your request on History Hub!
Since you have the birth location information, we suggest that you use the GenTeam database to find the archives where the records for that Czech town would be found. You may then connect to the correct archive to search for the online records you need. Please refer to the GenTeam instructions. Also, please contact the National Archives of the Czech Republic and they may be able to assist you. Lastly, please review the FamilySearch Research wiki for Czech Republic Genealogy.
We hope this is helpful. Best of luck with your research!