Hi, So I Don't Know If I'm Pregnant Or Not

Hi, so I don't know if I'm pregnant or not but I took a test and it said negative, although I've had some symptoms and haven't got my period in over 3 months now. I've been super tired, had mood swings, bloating, morning sickness (all day sickness), food cravings (hungry a lot) and that's all I can currently think of.