 [ Symptoms ] i am now 14 days late i took a test this morning and it was negative i have not been under any stress and i have took several different test but their all negative but breast are sore i feel fullness and bloating i also have dry mouth and nauseated at times is it possible that i could be pregnant and still not picking up on the test and if not whats going on [ Disease ] adderall and ritalin are closely related drugs that help with the symptoms of adhd however they work in slightly different ways in the brain