Question! Help with test!

So I've tried new hcg tests this cycle and my very first one I took was a faint positive. And definitely pink. It was definitely there. I took two more tests after that and there's maybe a faint line if I looked hard enough. But I'm going to say they were negative cause I couldn't see it as good as the first test. Has anyone gotten a false positive on the paraid test? It was the only test dollar general had at the time so I have no experience using them.