Late Period

My last period was 2/28, my projected period was 3/28. Today is 4/2 I have never been this late before. I don't feel any pregnancy symptoms, but I never do until I'm a couple of months. I took 2 test that said negative. Nothing has changed in my life. I have downloaded about 6 period apps, they all say the same thing. If I'm prego it says I'm 4 weeks. This is just confusing, I never had a test say negative after a missed period of this long, then again I never took test this early, it's always 3-4 months. I just want to know am I yes or no lol.