I think you will fine.
Check this.
Premium Processing
Cap-subject petitions requesting premium processing that are received on the “final receipt date,” or during the initial five business day period mentioned above, cannot be processed until after the random selection has been completed. The premium processing 15-day adjudication period (processing deadline) will not begin until such time as USCIS has completed the random selection process.
The number of master’s exemption cases received cannot be determined until all the petitions have been sorted and counted. The same holds true for the master’s exemption premium processing cases. In accordance with established guidelines, USCIS will refund premium processing fees for any filings for which it cannot meet processing deadlines. Even if USCIS issues a refund of the premium processing fee, it will continue to provide premium processing for these filings until completion.