Hi I Am Scheduled For A Revision Surgery For The

Hi I am scheduled for a revision surgery for the nose and a tip plasty next wednesday.. However I am bit concerned as I 'might' be pregnant.. I don't know if I should go ahead with the procedure but at the same time it is still early to check with a pregnancy test as my period should be due next week (same week as the operation).. Is it safe to go ahead with surgery because of the anaesthesia and antibiotics? Even though I am not 100% sure? I would be on the second week since conception.. Thanks