if you have been regular with your menses these years and this is the first episode at 53 years of age when the menses have been delayed by two weeks the causes can be a possible initiation of perimenopausal stage where menses are often delayed for a month or two and slowly tend to stop in next one to two years. perimenopausal stage can be verified with the hormonal fsh (follicle stimulating hormone) and lh (luteinizing hormone) levels which if high shall indicate an onset of perimenopausal stage. however it is suggested that pregnancy should anyways be ruled out and if negative then you can wait naturally for your menses to resume. hence try maintaining a menstrual calendar and keep a mark for your dates duration of flow and quantity to evaluate the possible onset of a perimenopausal state. for further information consult an obstetrician and gynaecologist online --> <link>
could delayed periods be a sign of early onset of menopause?