Feeling pressure and slight pain in your tummy at 38 weeks of pregnancy, along with frequent urination, can be signs that labor is approaching. These symptoms may indicate that your baby's head is engaged in the pelvis, putting pressure on your bladder and causing discomfort. It's important to note that every woman's experience with labor is different, so it's always best to consult with your healthcare provider for an accurate assessment. They will be able to evaluate your specific situation and provide guidance based on your individual circumstances. If you are concerned about the intensity or frequency of the pain or any other symptoms you are experiencing, don't hesitate to reach out to your healthcare provider for further evaluation and advice.