Nausea

Keke

I’ve been feeling sick for 3 days in a row now and nothing is making it go away. It can last for hours or come on for an hour or so and then disappear could this be a sign I’m pregnant?? I’m due my period in 4 days I’m gonna wait and see if I come on as I really don’t think if I am pregnant that I am far enough to start to feel nauseous. Help me!!