Threatened miscarriage with heartbeat: what to know

A threatened miscarriage with a heartbeat means early-pregnancy bleeding or cramping is present, but ultrasound has detected cardiac activity. This finding can be reassuring, although it does not by itself predict how the pregnancy will progress.

Bleeding in early pregnancy can come from the cervix, the area where the pregnancy is developing, or another cause. Cramping may accompany it. Cardiac activity shows that the pregnancy is developing at the time of the scan; clinicians may recommend follow-up based on your symptoms and the scan findings.

A clinician may use a Transvaginal Ultrasound to assess the pregnancy and look for a source of bleeding. Avoid interpreting the scan as a guarantee, and do not blame yourself: ordinary activity is not usually the cause of an early miscarriage.

Contact your maternity or gynaecology team for personalised advice, especially if bleeding continues. Note the colour and amount of bleeding, whether clots occur, and whether pain is worsening. Use pads rather than tampons while bleeding so changes are easier to observe.

Take only medicines your pregnancy clinician has approved. Ask whether you should pause strenuous activity or sexual intercourse; recommendations depend on your symptoms and examination. Follow any planned scan or blood-test appointment. If the pregnancy does not continue, options may include Medical Management of Miscarriage or Surgical Management of Miscarriage, depending on the situation and your preference.

Seek urgent assessment for heavy or rapidly increasing bleeding, severe or one-sided abdominal pain, shoulder-tip pain, fainting, marked dizziness, fever, or feeling very unwell. These symptoms need prompt evaluation because bleeding and pain in pregnancy can have causes that require immediate treatment.

Ask what the scan showed, whether repeat imaging or blood tests are needed, which symptoms should prompt an emergency visit, and what activities or medicines are appropriate for you. You can also ask when to contact the team if bleeding changes.