A barely positive

So, af was due yesterday at 14dpo. It hasn’t come, has shown no interest in coming. Showing signs of af that are also common in early pregnancy. Well, I saved my second morning pee and went to the store, grabbed a FR and went with the flow. My wife watched it, handed it back to me with a sigh and said it was negative but it had been less than 2 minutes. So I waited the full 3 minutes to look and there it was... a barely positive. When I say that, I mean it’s so faint you can barely see it but it was there before 10 minutes, and it was pink. It still is pink even 2 hours later. (I know you’re supposed to throw out after 10 minutes) but it was there BEFORE timeframe ended. Being a day late though, wouldn’t the line be dark?