Light's Effect. Light is one of the most important external factors that can affect sleep. It does so both directly, by making it difficult for people to fall asleep, and indirectly, by influencing the timing of our internal clock and thereby affecting our preferred time to sleep.
The forewaters are released when the amnion ruptures. This is commonly known as the time when a woman's water breaks. When this occurs during labour at term, it is known as spontaneous rupture of membranes. If the rupture precedes labour at term, however, it is referred to as premature rupture of membranes.
Sometimes water doesn't break until mom is pushing the baby out. In other cases, water doesn't break on its own, and a doctor or midwife needs to break it artificially using an amnio hook. For the sake of learning though, let's assume your water breaks spontaneously at home.