First Blood

The first blood is a sign of maturity in a young females life in other words a period or menstral cycle,its when we become a women and start to devolpe more.Some house holds react different to when there child gets the first blood when she got her period she was told to stay hiden from everyone even the sun until she becomes pure again.When I got my first blood it was just a sign of women hood It wasnt broughting to me as a unpureity.So is it a sin to have your first blood?That reminds me of the movie Carry where her mom said she was in sin for having her period and she needed to pray for it to go away:but besides that the story shows that this little girl is normal and human and she goes throw same thing that all females go through at a certain way