Boyfriend stressing me out I don't know what to do

Me and my boyfriend got in a argument today it was so stupid but everytime me and him argue that shit stresses me out. I'm crying I'm upset I don't know what to do at the end of the day I really love him and he loves me. So today on Instagram he posted a pic of food cause he was at his nephews birthday and he told me how they have a dj and then their gonna start dancing so I told him okay  babe go have fun make sure no bitches try to get at you love you bye cause I don't like that and I don't play that shit. Then he got really mad for some reason I don't know why and he said you got me fucked up nigga imma leave and slap tf outta you like really? Did I say something like don't get at other girls don't get their number don't do this don't do that NONE of that came out of my damn mouth it upsets me because I already have his trust I just don't want other girls trying to get at him or talking to him and it makes me upset when he said imma slap u I told him u wanna slap me fine do it then like wtf?? It makes me upset I really love him but the shit he says sometimes irritates tf outta me.  I'm stressing out there's a chance that might be pregnant and I'm not trying to stress because you never know and for my safety just in case that I am in not trying to stress but it's really making me mad. If someone can call me that would be great I'm just upset :""""( I don't need stupid ass answers