Belly button pain by itself is not considered a specific sign of miscarriage. Miscarriage more commonly causes vaginal bleeding with cramping or pain in the lower belly or pelvis, similar to strong period cramps.
Pain around the belly button can happen for many reasons during pregnancy and is not enough on its own to know what is happening. It may be related to normal stretching, digestion, muscle strain, urinary issues, or other abdominal problems. The source material does not identify belly button pain as a distinctive or validated miscarriage symptom.
It is more concerning if the pain comes with vaginal bleeding, worsening cramps, passage of tissue or clots, dizziness, fainting, fever, shoulder pain, or severe one-sided abdominal pain. These symptoms can point to pregnancy complications or other urgent conditions that need medical assessment.
If you are pregnant and have belly button pain that is severe, persistent, or associated with bleeding, contact an OB-GYN, maternity unit, or urgent care service. Seek emergency care right away for heavy bleeding, fainting, severe pain, or feeling very unwell.