What is mommy guilt? It is when a mom has a feeling of shame while away from her children. There is a feeling of FOMO (fear of missing out) while spending time away from your family. It could be that you’re at work, spending time with friends, traveling without your children, going on errands around town, a date with your partner, etc. Mommy guilt is a common feeling that most moms get, especially with a newborn. Mommy guilt can also be seen as a kind of anxious/nervous feeling that you cannot shake and always remains under the surface. Mommy guilt can stand in your way of the self-care that you need.