Faint but unmistakable line on pregnancy test.

dragonpie

So I did a pregnancy test on Saturday and Sunday morning, both negative not even a hint of a line, I started bleeding Sunday night not unlike my period except I wasn't cramping, Monday I did another test with fmu still negative. Today I have have done a test with fmu, and there's a line, I've dipped multiples into the same urine just Incase it was an evap, all have the same lines. But now I'm obviously concerned because I'm bleeding, I'm not in any pain except the odd pulling sensation, my breasts are tender, I'm incredibly nauseous, tired and irritable. Is this a positive? Chemical pregnancies you get a faint positive before bleeding but that didn't happen to me. Is this implantation bleeding? I'm so confused.