How long does it take for a pregnant woman to have pains once every 7 or 8 minutes and how long before she gives birth, it varies for each person. About 6-24 hours. The exact time still depends on the individual’s specific situation. A pregnant woman’s pain in seven or eight minutes is not yet in labor, until the pregnant woman has regular and gradually increasing uterine contractions, lasting 30 seconds or more, with an interval of 5-6 minutes, the mouth of the uterus is gradually opening, and the preluteal part is descending, and then the labor is imminent. It takes about 6 to 24 hours for a pregnant woman to go into labor, depending on her condition. In general, the time needed for labor is shorter for women in labor, about 6 hours. First-time mothers take a little longer, possibly up to 24 hours if the uterine opening is slow to dilate. There are individual differences in the time it takes for a pregnant woman to give birth. You can speed up labor by moving appropriately between contractions under the supervision of your doctor.