Are sore breasts on the sides a sign of pregnancy?

It's possible; Your symptoms of pregnancy will usually appear anywhere from the first week of your expected period to 1-2 weeks after your first week of expected period. Your first signs of pregnancy most commonly include: * missed period * tender/swollen breasts * change in color of the breasts * fatigue * nausea/vomiting * increased sense of smell * weight gain Here is a link to a website that will calculate the probability of your pregnancy: http://www.thepregnancytest.com/