4 days late please someone reply

Tested negative 2 days and today I tested but the test wasn’t really working but think it was negative anyway :( could I still be pregnant I don’t know exactl when I ovulated the app said 23rd but I think I did on the 1st because of symptoms I’m feeling really down and want some hope but I just don’t know anymore I have been so regular so long and now I’m not 😢😢😢