doctors test

Erinne • 24. Wife. Baby #1 dec 17th 2017
Hi ladies, I have a few questions if someone could please answer. I have had faint lines the last 3 days and I'm currently 10 dpo and AF is supposed to be here in 4 days. I called the doctors office and they told me to come in tomorrow for a pee test. Should I ask for a blood test? Has anyone experienced faint lines and the doctors confirmed pregnancy? Or revived a negative but was really pregnant?Thank you in advance