Is it normal to be 6 weeks 2 days pregnant and not have nausea yet?

I have other symptoms like sore boobs, im always so sleepy, i pee a lot, i have no period and multiple positive rests, vivid dreams. But i havent thrown up yet. Ive had that metallic taste in my mouth too. My first appointment is in 3 weeks but until then im worried something is wrong if i dont show symptoms. Any advice?

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