Hi i've last received my depo shot on the 15th of november 2023 and had unprotected sex on the 25th of january 2024 and the 4th of february 2024, i've been bleeding and it's dark brown, lighter than my period and the bleeding stops now and then so I took a test on monday 06th 2024 because i've been feeling very tired and sometimes have a not so pleasant taste in my mouth and also some chills the test came out with a very bold line and a very faint line ,i tested again after one day the test is negative what should I do.