2. However, there’s one more crucial aspect here. Until implantation occurs, there’s no contact of the fertilized egg with the mother’s organism and there can’t be any pregnancy signs, including a period delay. In other words, if it’s time for your period to begin and the fertilized egg hasn’t attached to the uterine lining yet, you will simply have a period, it won’t be delayed! You will have a missed period next month.
Therefore, we assume that spotting after you have missed a period isn’t usually associated with implantation, but has other triggers.