period late

Deanna

I've been having nausea dizziness cramps back pain side pain my boobs hurt and hot flashes and headaches since june 14th and today is the 7th of July and I was supposed to start the 5th but it hasn't come yet idk why it's late tho my last period was slower than usual but it did last 4 days i felt like this in may to so anyone know what's wrong