Ectopic pregnancy while on birth control

Contraception lowers the chance of pregnancy, but no method prevents every pregnancy. If a pregnancy happens, its location still needs to be established. An ectopic pregnancy is outside the uterus, commonly in a fallopian tube. Using birth control does not explain away one-sided pelvic pain, unusual bleeding, or faintness.

Some methods can change bleeding patterns, which may make pregnancy harder to recognise. A missed period is not required for concern. Pelvic inflammatory disease or earlier problems involving a fallopian tube can also affect risk, but an ectopic pregnancy may occur without a known risk factor.

Take a pregnancy test if you have pregnancy symptoms, a late or unusual period, or new pelvic pain despite contraception. Contact a clinician promptly if the result is positive, especially with pain or bleeding. Bring the name of your contraceptive method, details of missed or late doses, and the date symptoms began. A transvaginal ultrasound and blood tests may be used.

Go to emergency care for severe or rapidly increasing pelvic or abdominal pain, dizziness, fainting, shoulder-tip pain, or heavy bleeding. Internal bleeding can occur even when contraception was used and requires immediate treatment. If you feel weak or faint, avoid travelling alone.

Ask whether your test results show a pregnancy and whether its location is visible. Discuss whether your contraceptive should be paused, changed, or continued while you are assessed. If treatment is needed, ask about medication, surgery, including salpingectomy, and follow-up.