“…No Pregnancy rates in the 27 studies of injectable contraceptives were low. Among 10 studies of DMPA for which the pregnancy rate was reported or could be calculated, rates ranged from 0.1 to 1.7 per 100 woman-years [83,87,89,94,[96][97][98][103][104][105][106]. Among studies of NET-EN, rates ranged from 0.3 to 6.6 per 100 woman-years [79,81,83,85,88,90,91,93,96,[101][102][103].…”