positive test

So I got a positive test. But I tested way to early I really wanted to know and I got a faint positive but I'm way early I'm almost two weeks past my last period but I had sex like 3 days ago and I've been cramping bad so I thought I use one and it was positive well slightly.  I had sex a few weeks ago but we weren't trying then. Do you think it's just a false positive or no? I will try again in a few days.