Feeling "Pregnant" ?

For the past two days, I've been feeling like my boobs are HUGE! Then today, all of a sudden I got a weird feeling that just isn't going away. A nurturing feeling. The best way to describe it is the feeling I get once fall is here. Just a cozy, decorative feeling. I've never felt it like this before. Could I be feeling the early stages of pregnancy? I'm also feeling quite dizzy lately.