At 39 weeks of pregnancy, if the membranes rupture suddenly, this condition is not serious. Membrane rupture at 39 weeks is also a sign of impending labor, and 39 weeks is already considered a full-term pregnancy. At this stage, the fetus is relatively large and mature, already considered a full-term baby, therefore, it is completely possible to give birth normally. For membrane rupture at 39 weeks, it is advisable to give birth as soon as possible. If natural labor contractions can be initiated, then one can wait to give birth on their own. If after observing for four to six hours, there are still no contractions, drugs can be used to induce labor to deliver the baby. In the vast majority of cases with membrane rupture at 39 weeks, the baby is fine, so the situation is not serious.