There is no exact time for how long you can keep the baby in labor with a 15mm cervix at 34 weeks of pregnancy, and it can vary from case to case. 34 weeks pregnant cervix 15mm can keep the fetus for how long needs to be judged according to the specific circumstances of the pregnant woman, if the pregnant woman’s cervix shortens, but there has been no contractions, you can continue to wait for labor. If the pregnant woman appeared contractions, and contractions gradually strengthened, the mouth of the uterus dilatation is early labor may be, the time of delivery depends on the contraction situation. Pregnant women 34 weeks pregnant cervix 15mm recommended appropriate rest, avoid prolonged prolonged standing or activities too intense. Women who experience contractions need to be seen promptly to assess the condition of the fetus and the mother. Pregnant women with a cervix of 15mm at 34 weeks are advised to review the situation dynamically and closely monitor the contractions.