You can get pregnant at any time during your cycle in which you have unprotected sex. Important to use protection each and every time.
However, have you missed a period yet? It is very uncommon to have many symptoms of pregnancy so early on and particularly before you've even missed a period. If you have missed a period already, there is an easy answer in terms of what to do . . . take a pregnancy test. They are reliable and will give you your answer. good luck
But my boobs kind of been sore and I've been bloaded and kind of nauseous but idk if its cause I'm getting my period and plus I'm sick