Mind fucked

We're getting worried.

I usually hit my period on time and it lasts the full seven days. I am well educated in the woman and pregnancy department, but for this.. I have no answer.

So, about a week and a half ago (maybe), my bf and I had protected sex and the condom busted and so did he. He didn't pull out when he came because it was an "in the moment" kind of thing (even with a condom you should still pull out). I was supposed to start my period August 15th, 2016 and it didn't come. I didn't think anything of it but my boyfriend was concerned. Today, he went out and bought me a dollar pregnancy test. I didn't have to pee at the time but he was super curious and impatient. So, he told me to sqeeze out whatever I could. I literally got 3 drops of pee out and there was a lot of egg white mucus (and this is TMI but I have to give you guys all the details so you can help me). The test came out negative. But later that day, I had very, very, light cramps and they literally lasted like 5-10 minutes. Usually, my cramps are REALLY bad. Then at around 7pm, I started spotting. The blood was brown but there was barely anything. I've been checking myself all night and I haven't been bleeding anymore and I haven't had any cramps. So I don't really know what is going on. I know stress could be a probability but I can't ever be stressed when I'm around my boyfriend 😍 which is good because we live together. And yes my titties hurt and food and water tastes kind of like metal. No, my nipples have not darkened. But acne is a bitch rn.