The endometrium is the innermost layer of the uterus that contains the lining which is responsible for accepting and nourishing a fetus during the pregnancy process. The lining of this cavity changes with every monthly cycle in response to the primary female hormones produced by the ovaries: estrogen and progesterone.
If one parent is more stable than the other, judges can decide to award primary custody to that parent. As a result, parental fitness is often a mechanism used in custody battles. Each state has its own set of rules regarding what makes a parent unfit.
The UCCJEA includes provisions for emergency custody, however. If you flee your home state because your child is in danger from her other parent, the new state can use emergency jurisdiction authority to issue a temporary custody order until a more permanent solution may be addressed.