[MissJessicaAnne]

Sometimes it takes a while for a girl to become regular, so she may have not got into a regular cycle yet, this could be the case to her not coming on when she was ment to.
but there is also a possibility that she could be pregant; best thing to do is to take a test and then find out; the sooner the better.
if it is the case that she is pregnant, then you'll all need to sit down and talk about what should happen next.

i hope this has helped.

xx Jess