When is an ectopic pregnancy detected?

Detection is not based on a calendar week alone. A clinician considers the date of your last period, the pregnancy-test result, pain or bleeding, and changes in pregnancy hormone levels. A [Transvaginal Ultrasound](/treatments/diagnostics-and-imaging/transvaginal-ultrasound/) may locate a pregnancy in the uterus or identify a mass near a tube. Very early scans can be inconclusive, so repeat testing may be needed. Learn more about [Ectopic Pregnancy](/conditions/ectopic-pregnancy/).

Some ectopic pregnancies are found during an early scan before symptoms begin. Others come to attention because of one-sided pelvic pain or bleeding. The timing of detection does not predict the same course for everyone; prompt review matters whenever warning symptoms appear.

Contact a maternity or gynaecology service if you have a positive pregnancy test with pain or bleeding, or if you have risk factors such as previous tubal problems or pelvic inflammatory disease. Bring your last-period date and any test results. The team may arrange serial blood tests, an examination and repeat imaging. Keep follow-up appointments even if discomfort improves, because location may still need confirmation.

Seek emergency help for sudden or severe pelvic pain, fainting, marked dizziness, shoulder-tip pain, heavy vaginal bleeding, or profound weakness. These symptoms may indicate internal bleeding and require immediate assessment. Call emergency services if you feel unsafe travelling. For background information, see [Pelvic Pain](/symptoms/pelvic-pain/), but do not use a webpage to delay urgent care.

Ask what the scan shows, whether the pregnancy location is confirmed, when blood tests or another scan are needed, and which symptoms require emergency help. Ask about treatment options, including whether surgery such as [Salpingectomy](/treatments/gynaecological-surgery/salpingectomy/) is relevant to your findings.