How do i know if im pregnant?

Use a pregnancy test: The definitive way to know if you are pregnant is to use a pregnancy test. However, there are signs and symptoms that some women will note when they have concieved. Breast fullness and tenderness is common, as is fatigue, urinary frequency, headache, constipation, and pelvic cramping. Morning sickness (nausea) is also very common, and of course missing your period is likely after conception.