Is it in my head

Kim

So I'm due to start my cycle on Wednesday, I took a early detection test yesterday and it was negative but for the last week and a half up to a including now I am constantly bloated, nauseous at odd times food tastes awful that it makes me nauseous again. I'm a big fish lover but cant stand even the smell never mind the taste. My urine is darker than normal. Could I have gotten a false negative or am I just wanting to be pregnant so badly that it in my head.