I don’t really know tbh

So a week ago I came on here saying that I’m not sure where my period went and that still remands a mystery. I have the flo app which usually doesn’t get my period right but the predictions are a day or two off. I was supposed to have it on the 9th but as you can see now it’s the 16th and it still hasn’t came. I’ve taken 2 pregnancy test and I don’t feel or look different, so I don’t know what to do now?