Ectopic pregnancy after frozen embryo transfer

A frozen embryo transfer places an embryo into the uterus, but implantation may not occur in the expected location. Pregnancy after assisted reproduction therefore still needs planned monitoring. Pelvic pain or bleeding can have several explanations, including changes in early pregnancy, but they should be reported to the fertility team. Follow-up commonly uses pregnancy-hormone blood tests and ultrasound when the timing is appropriate. Read about [Frozen Embryo Transfer](/treatments/fertility-and-assisted-reproduction/frozen-embryo-transfer/) and [Micronised Progesterone](/materials/micronised-progesterone/).

Keep the follow-up appointments arranged by your fertility clinic and ask when the pregnancy should be seen in the uterus. Report one-sided pelvic pain, new bleeding, or pain that is increasing. Continue prescribed medicines, including progesterone, unless your fertility clinician tells you to change them. Do not use the absence of pain as proof that the pregnancy is in the uterus.

Go to emergency care for sudden severe abdominal or pelvic pain, fainting, marked dizziness, shoulder-tip pain, or heavy bleeding. These symptoms can signal internal bleeding and require immediate assessment. Tell emergency staff that you conceived after fertility treatment, even if your clinic has not yet confirmed the pregnancy location.

Ask when to repeat hormone testing, when an ultrasound can confirm location, and which symptoms should bypass the clinic and lead straight to emergency care. Ask whether your medication plan changes during an assessment and how any treatment decision would affect a future transfer.