Induced Labor

Ano po kadalasan reason bakit may mga failed na induced labor? 39w2d today, as in walang signs of labor. 2-3cm yesterday. Once na dipa ako maglabor until Sunday, scheduled for induction na. Mejo kinakabahan ako mga ma na excited at the same time. Pashare naman po ng success or failed induction story niyo to lighten me up. Please pray for us as well.