Can fibromyalgia give you a false negative pregnancy test?

Fibromyalgia itself does not directly affect the accuracy of a pregnancy test. Pregnancy tests detect the hormone hCG, which is produced during pregnancy, and fibromyalgia does not interfere with hormone levels. However, stress and hormonal imbalances associated with fibromyalgia might lead to irregular menstrual cycles, potentially causing confusion about pregnancy status. If there are concerns about pregnancy despite a negative test, it's advisable to consult a healthcare provider for further evaluation.