"The Constitution does not specifically enumerate a “right to seek abortion,” or a “right of privacy.” That such a right is not enumerated in the Constitution is no impediment to the existence of the right. Other rights not specifically enumerated have been recognized as fundamental rights entitled to constitutional protection including the right to marry, the right to have offspring, the right to use contraceptives to avoid having offspring, the right to direct the upbringing and education of one’s children, as well as the right to travel."