If they're looking for it, they might find a larger amount of hormones then normal, but they don't look for it. These pills are hormones, naturally in your body.
It depends on the test. Most normal blood panels like a CBC (complete blood count) metabolic panels, liver enzyme tests etc. wont show that a woman is on the pill. If they do hormone tests, they would see elevated hormone levels. A urine drug screen will NOT show contraceptives-they are not looking for that. Urine drug screens are looking for certain illegal and controlled drugs only.
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.