I Think I Maybe Pregnant. I Am Not To Start

I think I maybe pregnant. I am not to start until this Saturdsy. Although I have had dizziness, tender breasts, heart BURN & now I have a slight stye on my upper left lid. Never had one before. Could this be a sign of pregnancy?(the stye). I'm gonna take a hpt by Monday if I haven't started. Just curious. Any insight will help

Thanks