REALLY AFRAID

I'm really afraid. I've been on my birth control pills now for a month, 2 weeks and a day, and last week, my boyfriend and I had sex, and he came in me without protection. I've been taking my pill RELIGIOUSLY, without fail, and my period is supposed to come up in 6 days. However, I'm really afraid that I might be pregnant, because I was reading up on it because of my nerves, and early signs of pregnancy said that having a stuffy nose could be due to pregnancy, and Lowe and behold, I have a stuffy nose, and sore throat right out of nowhere. Not only that, but the other day, I became nauseous out of nowhere too. But I concluded that it was motion sickness from sitting on a moving dock, and sail boats all day. I sail every day in the summer, and motion sickness is nothing out of the ordinary. But the other day  I felt like straight up vomiting because of it. I have been continuing to take my birth control pills just as religiously as before, but do you think there is a chance that I am pregnant? I haven't had any implantation blood, or morning sickness. I know many of you will say to test, and I will do that if I see my period not showing up within the next 6 days or more, but I would also like if this is a judgment free zone, and to not leave any negative comments. In the past I have asked questions because I wanted to make sure everything was ok, and with the responses, I had felt very uncomfortable with what people had said to me. I honestly come here to have advice and not be judged for things I ask, because it's better to be knowledgable in the future, than to be fearful after the fact.