Late but Neg Pregnancy Test

So my last period was Aug 17-21 and my expected period was supposed to be September 19-24 but it’s the 27 and I haven’t started it yet nor have I had any signs of it starting. But I’ve taken a few pregnancy tests, last time was day before yesterday, and they have all been negative so I figured okay, no problem It’s just late. However I’m starting to wonder if I should go to the Dr? I mean I hate the thought of going and nothing being wrong besides it happened to be funky this month and will show late but I also don’t have any girlfriends I can discuss any of this with and I’m not sure if it’s really worth making an appointment for. Worst case scenario I make an appointment and by the time my appointment comes I start my period and say oh never mind but idk I’m just starting to get a little worried.