What could this mean??!? BFN BFP OR EVAP?

ok i took an HPT monday (blue dye) they both showed very very faint lines...the first one was kind of grayish...the second one...very very faint but with a tint of blue....went to the doctor tuesday...only gave me a pee test (even tho i asked 5 times to give me a blood test) bought FRER hpt thursday....3 pk.....took 2 thursday night (messed the 1st one up) but the second one i didn't really notice anything because i was looking for it RIGHT beside the control one...anyways...friday took the 3rd one....it said and still says BFN....but the one from thursday night...when i went to throw it away friday...there was and is a very faint but PINK positive line there....is this a BFP or an EVAP>???? please help me...im going crazy....(the blue dye test still says positive as well and then my test from when i found out i was pregnant with my son in 2005 they still say postive as well) but what could this mean?? help!! thank you