Missed period 😕

So I'm new here and my period was suppose to come on the 13th but it never did I have no cramping or spotting just bloated and sore throat , sometimes headaches and weird aches in my stomach but that's all , haven't been stressing more like partying ! I went to the doctors didn't have that much pee because I just went to the bathroom but anyways it came back negative I think it might be early still and that I needed to wait a week but I know for a fact that I am pregnant . anyone get a false negative before ?