Late period

Danielle

I have had pms symptoms but my period is three days late. I had unprotected sex four days ago. I am on the pill but I recently changed jobs and hours so I’ve been taking my pills late or the next day because I have fallen asleep. Is it normal to get pms but not get your period? I don’t think I’m pregnant because I wasn’t ovulating but I’m not sure if I should take a test yet.