My daughter has taken 3 home pregnancy test that were positive with her morning urine well late last night we went to the hospital and she was barely able to pee but the test came back neg then she took another test this morning and got a bright positi

Blood test. Get a blood test to check for pregnancy and that is the deciding factor. Why so many urine tests?
All test arent equal. It sounds like she is likely pregnant- the more days that pass- the more likely the test will be positive- a quantitative b-hcg will give the real answer. These can be followed by her pcp or ob/gyn. Very early pregnancy can cause false negative test. So depending on what your hoping for- cross your fingers and go see the doctor.