<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have the nexoplanon in my arm it expired back in june. I have comtinued to have unprotected sex with my husband. My period is extremely late i have last had 1 October 31st. I have taken a couple of pregnancy tests that have been negative. Is there a chance i could be pregnant?  <response>: Hello, I have gone through your query and understood the concern. If you attained regular menstrual cycles after expiry of the implant, the current scenario is suggestive of hormone imbalancechemical pregnancy. If the menstrual discharge is available for an examination, this would give some idea. A blood test for pregnancy and a trans-vaginal sonogram help to clarify the situation. Polyps, endometrial casts etc., are the other possible causes of the discharge. Hope this helps. 