Negative blood test but 3 positive urine test??

Linda

A week ago Monday 11/6 I had some blood work done. Friday 11/10 I took a hpt and it was negative. I waited a day and did it again Sunday 11/12 and I believe I got a BFP. Received a call from the midwife today and she said my blood result came back negative?? It freaked me out a little so I ran to the store and took 2 more hpt and they seem to be positive. Can someone confirm? Am I going crazy? Has this happened to anyone before? Please help!!