A late or a missed period can leave you stressed and worried. But usually, it is nothing to worry about.
A woman's menstrual cycle can be influenced by a range of factors, from stress to changing exercise habits. Of course, if you have had unprotected sex, it can be a sign of pregnancy but if you have ruled that out there are a number of reasons that could explain why your period is late.
According to GP Neel Patel from LloydsPharmacy Online Doctor, while most periods occur every 28 days it is completely normal to have a cycle from anywhere between 21 and 40 days. It is also common to have an irregular cycle, which means your period might appear at different times during the month.