Why am i spotting at 41 days late? am i pregnant? with only nausea and fatigue as symptoms?

Take a test: If you've missed your period, had unprotected sex and are worried you might be pregnant, take a home pregnancy test. They are inexpensive and accurate and you will then know your answer. It's possible that you aren't pregnant and that your missed period and spotting are result in hormonal changes, weight changes (heavy or thin) or thyroid issues. See a doctor for evaluation if this is case.