Am i pregnant or not?

Hi everyone. So I had my period on the 23 to the 26 of October. Then I had a brownish color bleeding on the 31 to the 3 of November. Then no signs of my period for 3 weeks but I have very sore boobs dark nipples. So I took a test it showed two lines but one line was faded. After that I wait to a week then on the 29 I had pink discharge and started bleeding for 2 days but very light. Took another test its negative. But I'm feeling very tired moody I have back aches and sore breasts nausea. Also I get so hot. Has anyone experienced this?