Serious questions

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So ma last cycle was on the 9th of January it stopped after 5 days but came back and was light for 2 weeks. So my date was different from the one it says now, I changed it thinking the bleeding I had after was my period as well. But the new date was 5 days ago. I took a test a few days ago and got negative. I recently did have a miscarriage in November. I don't know if I'm pregnant or period is just late.