Late!!

My period is six days late. I haven’t been this late in forever and me and my boyfriend have been having a lot of unprotected sex. Even during my ovulation. We aren’t trying for a baby at all we just don’t use protection. My boobs have been sore for a week or so. I get cramps like my period is starting but nothing happens. Haven’t been nauseous or anything but did have the flu/flu like symptoms this week so I have stayed home from work. Been very very moody. Like crying one day super happy the next and then other days super anxious and cant sleep. Should I take a test?