Is cramping always a symptom of miscarrying at 4-8 weeks?

Not necessarily. While cramping is a common symptom during pregnancy, it can also occur for various reasons which do not necessarily indicate a miscarriage. Many women experience cramping during their first trimester, even when their pregnancies are progressing normally. These cramps may be caused by the expanding uterus, hormonal changes, or the stretching of ligaments in the abdomen. However, if you are concerned about any cramps or other symptoms, it's always a good idea to consult with your healthcare provider for proper evaluation and guidance.