Had sex with a guy used a condom it didn't break or at least not as far as I know but we weren't very clear-headed, and he is not very good at putting condoms, so I was worried he didn't leave space at the tip or something so the morning (noon) after I took a plan B pill to be safe. I got my period a few days later but now that I look on it was lighter than usual (very much lighter) but it did last about 5-7 days as usual. Now I am 3 days late, and I am worried that I might be pregnant. I took 2 pregnancy test (both were negative), but I am not sure if I did the first one with enough urine and if the fact that it wasn't the first for the day (urine) could have been the problem. What would you advice me?