White spots on the nipples could indicate nothing abnormal, a period that is one week late could be a serious sign of pregnancy. A late period is the first serious sign of early pregnancy but is not always related to pregnancy so a late period must also be confirmed by a pregnancy test. You can take a home pregnancy test to confirm or exclude pregnancy, and if positive, follow up at the gynecologist's office with blood test and an ultrasound confirmation of the pregnancy.
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