Pregnant or just buggin?

So this has been happening for 5 days but every time I eat something I feel like i'm going to puke. I never do but I just get so light headed and feel so nauseous

and recently my nipples are super sore like I can't wear bras bc it feels like shards of glass when anything touches my nipples. My period is 8 days away. I had unprotected sex with my boyfriend all last week (ovulation week) but I don't think id be showing symptoms this fast. I believe it's too early for a test.