3 days late...

Hi ladies, so I'm three days late for my period this isn't usual for me as a month ago I was on the pill but had to come off of it due to the way it was making me feel. Now I'm engaged and me and my fiance never use protection because well we choose to! Three weeks after going off of the pill I was diagnosed with positional vertigo and it's very overwhelming, I'm also stressed about a few other things. My problem is I'm confused at whether to take a pregnancy test or not, because my vertigo is almost gone but I'm still extremely nauseous and I can't eat properly.

So what do you ladies think? Should I take a pregnancy test or just try to relax and see how nature takes its course?

Thanks for your help!