What does it mean when you have sharp pains in the lower tummy at 39 weeks of pregnancy

Preparing for labor: As you get closer to delivery it is normal to begin having mild irregular contractions. You may feel your abdomen tighten and then relax. Many patients feel sharp pains at the pubic bone or down into the vagina. Your body is preparing for labor. The baby's head positions itself down in the pelvis putting pressure on your cervix and your pubic bone separates in the middle.