Early symptoms? False negative?

Hey guys. So I had my period this month for one day, during that one day I only released brown blood....which had concerned me so I tested was negative, left it at that. Now a two weeks pass & I am very bloated & feeling nauseous. Constantly peeing, hungry very late/early morning, don’t wanna eat/ drink from nausea, feeling twinges and wondering if this has happened to anyone else? Having or had similar symptoms? Also could’ve possibly been a false negative when tested? Love to hear your feedback ladies! Planning to test again some time tomorrow.

(Also today & last night experienced very little spotting)