help please

So I'm late on af and I have been having pregnancy symptoms but I've taken 3 tests and all negative. As of right now I'm only a day late so I'm thinking I'm maybe testing too soon. I kinda have that feeling that I am pregnant and my SO thinks so too but it's just not coming on the test. Has anyone else had that. Maybe I just have to wait longer😩 I have no signs of af anytime soon. So that's a big factor in thinking I am.