If you want to find out exactly when you got pregnant, talk with your health care provider. You may not be able to pinpoint the day, but you can usually narrow it down to a week.
Before you even miss your period, you may have some signs of pregnancy like fatigue, breast tenderness, nausea, mood swings and food aversions. A pregnancy test will confirm.
At week 11 of your pregnancy, your baby is about the size of a single eye shadow, or 1.6 inches long. He even has little hands that can open and close.