What signs may indicate preterm labor?

The presence of regular contractions, pressure in the pelvis, and fluid leakage is key to identifying signs of preterm labor. Regular contractions are rhythmic tightenings of the uterus that can lead to cervical changes, which are crucial indicators that labor may be approaching. The pressure in the pelvis can indicate that the baby is moving lower into the birth canal, which can also signal the onset of labor. Fluid leakage typically suggests that the amniotic sac has ruptured, which is often a precursor to labor, especially if it occurs before the full term.

While the other options present symptoms that may be related to pregnancy or other health conditions, they are not definitive indicators of preterm labor. For instance, fatigue and mood swings can occur during any stage of pregnancy due to hormonal changes, and insomnia and weight loss might be associated with various factors, but they do not specifically indicate preterm labor. Similarly, high blood pressure and edema may point to pregnancy complications like gestational hypertension or preeclampsia, but again, they don't signify the onset of labor. Understanding these specific signs is critical for timely intervention in cases of preterm labor.