Early pregnancy symptoms.

So last weekend my boyfriend and I got a little freaky and had rounds of intercourse and he cummed in me each time. The next day him and I were both feeling nauseous as something was about to happen. (I know you don't get symptoms that soon but it was just that feeling.) so we went about the week and had sec everyday of the week and he cummed in me every time. So now, two weeks after the first time, I took a test and it came back negative but I'm really feeling my boobs start to feel different and I'm just getting some symptoms. Do y'all think I may be pregnant or I shouldn't get my hopes up?

Basically, could y'all let me know y'all's experiences of early pregnancy symptoms