Hi Welcome. I have gone through your query. Based on the information provided by you , you are less likely to be pregnant. It might be related to the implants. But, I WOULD SUGGEST YOU TO TEST FOR IT USING HOME PREGNANCY TEST KIT. TEST KITS ARE HIGHLY ACCURATE, ITS ACCURACY INCREASES WHEN USED A WEEK AFTER MISSED PERIOD AND WITH MORNING URINE SAMPLE. KINDLY REPEAT IT. This provisional advice provided by me is based entirely on the input provided to me. I would suggest examination by the doctor. Hope this helps. Take care.