Luteal phase support
Medication, usually progesterone, given after egg collection or embryo transfer to support the womb lining ahead of implantation.
In plain English
It's the hormone medication, usually progesterone, given after your transfer to help your womb lining stay supportive for a pregnancy.
Why it matters
It's a routine, expected part of IVF because the hormone-suppressing medications used earlier in the cycle can affect your body's natural progesterone production.
Related terms
Guides that cover this
Written by patients, not clinicians. This page has not yet been reviewed by a named fertility professional, so it explains published guidance and points you to the original source instead of giving medical advice. It is not medical advice. Decisions about your treatment belong with your own clinic. Read our editorial policy and corrections policy.