Should I test?

Alright so I’m on birth control (the pill) and I know that it can sometimes stop your period, but since starting it in early October it hasn’t affected me that way. I made a little mess-up on this past pack, so I decided to have my period instead of skipping the placebo week just to make sure everything is in working order. Since starting the pill, I can ALWAYS count on getting my period one day after placebo week starts. I haven’t gotten it and I don’t feel any of the symptoms I ALWAYS have before my period. Should I be concerned and test or should I wait it out?