A friend of mine just had a nasty experience in which she thought she was pregnant after her period was 5 days late. I had to calm her down that there are myriads of reasons your period can be late. It’s easy to jump to conclusions when you realize your period is late. If you’re trying to conceive, you may feel excitement and a sense of disbelief.
If you’re not, you might feel fear or disappointment, not to mention utter confusion if you know there’s no way you could be pregnant. The fact is, though most people automatically think of pregnancy anytime a period is late, it could be that or one of many other possibilities.