Only after the egg has implanted, it triggers hormonal changes in your body, which lead to the loss of period. After that the first symptoms of pregnancy appear. So, implantation is always the cause of the menstruation absence. And missed period is just a consequence in such case.
A Pagan Resource Site. There is a fifth element that most of us the in the Craft recognize. This is the element of Spirit, known as Ether or Akasha. This is the element that transcends, yet is a part of, all the other elements.
The Five Elements in Nature. The Chinese believe there are five seasons - Autumn, Winter, Spring, Summer (the four we commonly talk about) and Late Summer. Behind each of the seasons there is an elemental energy; the Five Elements - Fire, Earth, Metal, Water and Wood actually creating each of them. By observing nature we can see these five energies in the world around us and also see how these same energies are reflected within our own bodies and personalities.