Wondering if I could possibly be pregnant

Susan

So I still haven’t gotten my period. I have irregular periods. Only getting weird symptoms such as chest tightness or pain, dizziness / lightheadedness, certain food smelling/ tasting bad, and nosebleeds. Yesterday I had another nosebleed and only my right nostril bleeds, but today I woke up from a nosebleed from my left nostril. I did have cramps and lower back pain yesterday so I think it might be my cycle coming.