5Days late 2 bfn,1very faint bfp could I be pregnant?

Im 5 days past due for af. hurt and are firm, frequent urination, can't get enough to drink, and cervix has seemed to disappear. I took a cheapy test=neg. Took rite aid brand=very faint pos, and one my boyfriend brought home fom his job in a Dr's office=neg. Could it be too soon to tell?