Need your answer. ?

Hello, I took pregnancy test this afternoon and it's negative. But I'm really confused because I do really felt a pregnancy symptoms. Like I'm always tired, sleepy, nausea sometimes, back ache, my hip is getting bigger and stomach cramps. I'm a Filipina and we have a belief that if your pulse in your neck is fast than before your pregnant. I have that fast pulse, but my pregnancy test turn to negative. ?