Anecdotal but I personally went to a school that transferred pregnant girls and mothers from other schools and my experience is that it is very common. There is

Anecdotal but I personally went to a school that transferred pregnant girls and mothers from other schools and my experience is that it is very common. There is a biological drive to have children, you'd expect that drive to begin when fertility begins in some not insignificant portion of the female population, and where hormones are concerned often reason goes out the window.