This is
rather unexpected finding as contraceptive prevalence
rate (CPR) was higher five years ago [[19] NIPORT et
al, 2004]. compared to the current CPR [[15] NIPORT
et al, 2007] suggesting that women aged 20-24 years
should have lower teen pregnancy due to higher CPR at
that time. Perhaps this unexpected finding may be
because of higher traditional contraceptive method use
in five years ago compared to current situation where
despite decreased CPR modern method relatively
increased [[15] NIPORT et al, 2007].