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Spotting in early pregnancy is fairly common, but it should never be considered normal, and it always warrants a call to your ob-gyn, Dr. Landy says. Although the presence of spotting does not always indicate a miscarriage, it is a sign that something abnormal may be going on in the pregnancy, she adds.
Pregnancy tests will catch less than 70% of pregnancies at 4 days before a period. A few things to understand about pregnancy tests. When they say you can test up to 5 days before a missed period, that means 4 days before your period is due. That number is based on an average luteal phase (the time between ovulation and the first day of your period) of 14 days. Which means those tests recommend testing no sooner than 10 days past ovulation.