â¢ is one of the main ingredients involved in the formation of ground-level ozone, which can trigger serious respiratory problems. â¢ reacts to form nitrate particles, acid aerosols, as well as NO2, which also cause respiratory problems. â¢ contributes to formation of acid rain. â¢
To strip the membranes your cervix must already be dilated. It can have some effect to trigger labor. Most doctors prefer to induce by 41 weeks or certainly by 42 weeks to avoid the complications of postterm pregnancy.
The induction of labor may be started before any signs of labor are present when: 1  The membranes or bag of waters breaks but labor has not begun (after your pregnancy has passed 34 to 36 weeks).  You pass your due date, most often when the pregnancy is between 41 and 42 weeks.