It is not uncommon to experience cramps in the vaginal area during the later stages of pregnancy, such as at 39 weeks. These cramps can be caused by various factors, including the pressure from the baby's head on the cervix or changes happening in your body as it prepares for labor. However, if you are concerned about the intensity or frequency of these cramps, it is always best to consult with your healthcare provider to rule out any potential complications. They will be able to provide personalized advice and guidance based on your specific situation.