Am I possibly pregnant ?

This is irresponsable from both of us. Every time we have sex we do not use protection what so ever. I've never been pregnant before. Although now I am worried I could possibly be expecting a baby. When it comes to my period, I never miss the date I'm supposed to get it and 2-3 days before I get horrible cramps, acne, and grumpy. Unlike now, I've been eating like crZy for this past month ( like huge amounts of food) and gained 11 pounds (let me mention that my metabolism is fast and I've never gained over 5lbs). Ny boyfriend thinks my breast looks bigger than before and when we try to get a little "freaky" he can't really do all that good stuff on my boobs because they hurt. Also, I have never looked so bloated in my entire life. I'm always going to the bathroom to pee and my mood swings are all over the place. I'm always tired and never want to do anything besides eating. Did I mention I'm still waiting for my period ?