9 days late and negative test

Hey guys I had an accident on the 10th of this month meaning he came inside me. It's now the 25 and my period is 9 days late which is unusual for me but every test I take is negative. I've been having pms symptoms for 2 weeks now but not even a drop of blood. Occasionally I'll get like water like discharge, horrible lower back pain and occasional cramping, emotional as well. It's only been about 2 weeks since it happened is it too early for a test to show a positive? I'm hoping im pregnant and will be sad if I'm not 😔. Anyone with similar thing going on? I have a doctors appointment coming up as well.