Doctor said to wait

I’m 14 days late with a couple negative test, I finally contacted my doctor. She told me to wait two more weeks to take a test, and if still no positive and still no period than she would see me. Anyone get a positive this late or later? I have a two year old and I remember how sore and swollen my breast were with him and they feel the same way. I just don’t understand how I’m getting negatives. I want to test like every day but I should wait like the doctor said.