I really need your help 😭

I have all the pregnancy symptoms... morning sickness, sensitive boobs, swelled boobs, smells affect me, I'm tired and moody... day of conception would have been September 10, but I just started my period yesterday... it's been moderate to light, back and forth, but never heavy like my usual period, I just feel it's all different this time, somehow I can feel it. I tested this past Sunday the 18th and it said negative but I think it was just too early... I plan on testing again this coming Sunday or Monday, but now there's nothing to do but wait and I'm terrified maybe I'm wrong... what if there's just something wrong with me... what are your thoughts? Please help I'm seriously starting to flip out 😭