How to just stop arguing

My boyfriend & I have been dating for a year & a half. Everything’s been amazing & we’re very in love, but lately we’ve just been bickering over the stupidest things. We just are getting annoyed easily & arguing for no reason. It’s been going on for like a week. How do we just stop? Like I want to go back to just laughing & loving. Has anyone had something like this happen in there relationship? How do you just stop it?