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I'm 18 years old and I think I may be pregnant. My period is over a week late and my breast are swollen n sore, I've also been feel sick to my stomach randomly. Is it too early to be having these symptoms? 
​I just took an at home pregnancy test and it came up negative. Is it common to get a false result? (I used clearblue) Just wondering what you guys think and how likely it is that I'm actually pregnant.