It seems like your heart has been worked up for these chest pains and doesnt seem to be the cause of it. Other causes of chest pain include gastrointestinal problems such as GERD, gastritis, ulcers; pulmonary causes such as pneumonia, pulmonary emboli, aneursym should be considered. Now this connection with the birth control may be coincidental or related, it is hard to tell. Medical problems such as pulmonary emboli and aneurysms can occur in women taking birth control pills so should explored further. I recommend you see your primary care doctor regarding this, or if your symptoms become worse go to the ER.
If you have any further questions, please ask. If no further questions, then please click accept.