help! anxious and confused

Natalie
In march I took a hpt and it was positive. I went to the dr to take a urine test and they said it was negative. When I went back home same day I took a digital and it was positive. A couple days later I started spotting and went to the hospital and they did blood work and found that I was not pregnant and gave me antibiotic for a uti. Fast forward to this month.. I took a pregnancy test Thursday (10 dpo) it was positive (digital clear blue) and I took a first response pink line today and it was clearly positive. Can it be another false? I'm so scared what happened in march is happening again. Can a uti cause a false positive ?