Could it be.....

So the hubby and I just recently decided to stop trying after 6 months. We decided just to enjoy each other for a while... well as the story goes my af was two days late took a test and it was negative, now i am currently five days late. Kinda nervous to test again worried it is negative. Should I wait a few more days or go ahead. My period is never late and has never been late before, I also never got any of my usual pms symptoms.