Sticky situation...

So I am now 14 days late on my period- i have been off of birth control for a while now (using the pull out method) and when i’m not on it my periods do skip around a lot & it’s irregular. I was tested at the OB-GYN when i was one day late on my period and it came back negative. I tested again when I was 10 days late with a “Test 5 Days early” at home pregnancy test which was also negative. Not sure what’s going on & Im going to take another test soon. just very nervous and trying not to stress out too much to make sure that’s not delaying my period either. I haven’t had a problem before but i’m worried that something might be wrong yet i haven’t had any signs of pregnancy or my period