I got blood/urine work back yesterday that was taken last Tuesday saying I have an std, bladder infection, yeast infection, and abnormal cells around my cervix - but nothing about being pregnant, even though I am very nervous because I usually get my period at the end of the month and have not gotten it yet. There's too much going on in my body to tell and I don't know how to tell for sure (an at-home test came out negative).