Implantation?

So I took a test on the 15th and there was a faint line. Later that day, I started bleeding but not a whole lot. I’m still bleeding a little today. Is this bleeding from implantation? Or did I get a faulty positive? I’m probably going to take another test this weekend if I have money. But I don’t know. I’ve been having a lot of signs and I really feel like I’m pregnant. But I’m kind of worried about the bleeding. Should I be?