Can Amoxicillin Delay Period?

hi,just call me tin.i am taking a pill for almost 5 years.but recently my thumb feet got an injury because of ingrown.and then i'll take antibiotics and amoxicillin.then my period for the month of august does not come..i'll take a pregnancy test and then the result is negative..my sister tell me that the other medicine i take is the cause of stopping my menstruation?can this be true?