[header] How to end a teenage pregnancy with abortion [title] Confirm your pregnancy. [step] Missing a period is a common symptom of pregnancy, but it does not mean it is a certainty. If you are late, you might suspect that you are pregnant, particularly if you have other common symptoms such as nausea or tenderness in your breasts. 
If you think you are pregnant, it is a good idea to take an at-home pregnancy test. Many of these tests are considered to be very accurate, and are widely available at drug stores.