Advice? Period's late

I know this is a common thing for people to post about but I just need to talk about it.

I'm on the pill and am in a serious relationship, my period is late three days now. I had alittle spotting, no where near enough to use my menstrual cup, usually my period starts on day two of the sugar pills in my pack ( four sugar pills all together in a pack in case someone doesn't know) and it never showed up, the sugar pills past and now I'm on the full hormone pills and no period.

I've tested and get bold negatives, and no pms/ pregnancy symptoms except alittle cramping and alittle pink spotting. My period is very predictable and is sometimes a day late.

Should I keep testing? Or just wait it out. Any insight would be greatly appreciated 😃