Could I be Pregnant ?

Brianna

I’m 15 days late and having bad cramps daily along with nausea and frequent urination. I’ve taken 3 tests when I was 5 days and 7 days late but we’re both negative. When I was pregnant with my son 10yrs ago I had low levels the whole time, we only found out I was 2 months pregnant with him by blood test, But my dr won’t do a blood test without a positive urine test. I’m stuck. Any advice? Thank you in advance