No period

Kay

So my period usually ALWAYS starts on my predicted day and is always on time. We’ve been trying to conceive for the last 5 months. And we have gotten a lot better with having more sex during fertile window. So my period was supposed to start on Saturday the 4th, today is Sunday the 5th and my period doesn’t feel like it will be coming. I feel like this might be it, but when I took a pregnancy test on January 2nd it was negative. Should I wait to test again? It’s just weird that I got a negative but period is late 🤷🏾‍♀️