TTC Question

Danielle

So I've been TTC for about 2 years now. My ovulation day was October 19th. And in was suppose to start my period November 2nd. It still hasn't arrived. I'm having some of the symptoms of early pregnancy. Like my beats are sore, I'm tired all the time, I get nauseous. But I've taken pregnancy tests that all came up negative. Is there a chance I could be pregnant that the tests just isn't picking up? Or what do I do?