The pregnancy scare

Sorry about this, I know this is a repetitive topic, but I think I'm pregnant. My nipples have been hurting for over a week and a half and anything I eat that's not potatoes or bread make me sick to my stomach. I haven't actually thrown up yet, but I feel like it. I did have unprotected sex and he did cum inside of me. It was 3-4 days after my period ended and I'm "supposed" to start my period in 2 days. Should I wait to take a test? Does it sound like I might be pregnant?