help i need advice

everything has been going great with the guy i’ve been seeing, but i have been starting arguments with him bc my hormones are crazy. well he has went completely MIA all night and all day today.. and btw we stay together every night, have had the “if i got pregnant” talk, he even asked if he could start finishing inside me..etc. i’m just confused. maybe all the fighting was to much idk. bc yesterday he said that we were fine and blah blah. so who know. should i just leave it?