Hi over the past 2 years my husband and I have been trying to conceive well recently in November last year we gave up... I had surgery in October to remove a cyst from my left ovary.... In January I had a very odd cycle... It came a week early and lasted 4 days and spotted brown the rest of the 7 days... Well I m due for another cycle and I haven t got it in 2 weeks. ..I have taken adderall a few times to help me focus and etc but I don t take it everyday.... I have taken pregnancy tests but all have said negative.... Could I be pregnant and the adderall is giving me a false negative?