 [ Symptoms ] whens the earliest to tell if your pregnant i have been feeling very sick to my stomach at different times of the day and getting sleepy at weird times also feel like have very little energy it is been probably about three weeks since we had sex and for about a week now i have felt like this and i do not know what to do [ Disease ] with an ultra sound they can tell at about 2 12 weeks with a test it can pick up as early as 4 weeks