Late Period - Test says not pregnant….

Hi all, kind of freaking out at the moment and can’t find much online that helps. Details are, my period usually comes 21 to 30 days after the end of my last period, consistently for the past few years. This month it’s already day 33 and still no period. I’m so worried I took a test last night that indicates not pregnant, so where is my period!?

My boyfriend and I do have unprotected sex and normally he shoots inside when we know my period is due in the next day or so, then he goes back to withdrawal method during and after my period. That was about a week ago when my period was supposed to be due so we figured safe.

I checked online about other reasons to miss period and can’t find a match. I’m pretty healthy, 27 years old, not over or under weight, not stressed and had a medical 2 months ago and no issues identified.

If anyone has been in a similar situation or can spare any thoughts about this, that would be super helpful. Thinking now I should test again in a few days but just doesn’t make sense as the test yesterday should have picked up if I’m really pregnant this long after ovulation.

Thanks all!!