Am I pregnant?

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Soooo I've been feeling really weird the past two weeks, like I get nauseas randomly, I've been really emotional, so exhausted, and I thought for sure I had to be pregnant! I've never felt like this! I used to get really emotional before I started my period but it's been years!! I was so excited! On Friday I'm supposed to start my period so this morning I took a test completely expecting it to be positive and it was negative!! 😞 is it possible that it's still too early and I actually am pregnant or should I prepare myself for AF? Any advice or personal stories would be so appreciated I'm feeling really crushed!