Confused.

I'm currently 3 days late.

I took a test this morning which was negative u think. Foods I love taste different. For instance, my fiance made me breakfast in bed and I could've sworn he used different syrup. I typically love syrup, but this time I wanted to throw up. He used the exact same stuff we've always used though. I was just tasting something completely different. Also, a lot of what I eat tastes way spicier than it actually is...

I know I should just keep testing or wait until AF. But I was hoping someone could share their personal stories and what happened. I feel like I'm not pregnant since I'm 18 dpo and still don't have a positive. But I'm late and nauseous and having weird symptoms I've never had.