Advice Please

On Thursday (February 6th) I took this test and it said pregnant. Every since then I have been testing negative. My period was due February 6th-7th (it normally starts the night before) so I’m 2-3 days late and still negative. I’ve taken a hospital urine but they denied me a blood test. (I’ve only gotten positive blood test when I was pregnant with my daughter. Hospital urine test were always negative.) Any advice or hope?