Yes, normal na may spotting after ng I.E. Yes, pwedeng matagal pa bago ka mag-active labor pero pwede ding mag labor ka na very soon. We really can't tell.
Sa experience ko dati every I.E. may spotting ako. Also, at 37 weeks closed cervix pa ko. 38 weeks, 1-2cm pa din. 39 weeks at 12 midnight 1-2 cm pa din, yung spotting after ng I.E. nagtuloy tuloy to fresh blood na bleeding, around 6AM 4 cm na. Around 8AM 10 cm na.