Miscarriage at 12 weeks: what to know

Some people notice bleeding and period-like cramps, while others have stronger contractions or pass clots and tissue. A pregnancy may also have stopped developing before symptoms begin. Because bleeding and pain can have other causes, a symptom description cannot establish the diagnosis on its own.

A transvaginal ultrasound can assess the pregnancy and whether the uterus contains pregnancy tissue. Your clinician may also discuss your bleeding pattern, pain and previous scan before recommending follow-up.

Call your maternity or gynaecology service for individual instructions. While bleeding, pads make it easier to monitor flow; rest, fluids and recommended pain relief may help. Arrange follow-up even if symptoms settle, because the team may need to confirm that the miscarriage is complete.

Possible approaches include waiting, medicine or a procedure. Medical Management of Miscarriage and Surgical Management of Miscarriage outline options that may be considered after assessment.

Go to urgent care for heavy bleeding, severe or one-sided abdominal pain, faintness, shoulder-tip pain, fever, chills or a sudden feeling of illness. Do not wait for a scheduled scan if these symptoms develop.

Ask how the diagnosis will be checked, what bleeding is expected, whether tissue remains, which management options are available, and what follow-up is needed.