SCARED

So my boyfriend and I were a bit intimate the other day but he didn't go inside me because he didn't have a condom his penis was like on my upper vagina and he only had like precum and the day right after my boobs started hurting and and I was nauseous keep in mind I'm supposed get my period on Tuesday which is five days away from when that happened now it's 2 do you think I'm pregnant that some precum my have slipped in my boyfriend and friend said I wouldn't be feeling any symptoms that's it's just my anxiety kicking in and my brain