Preparing your womb for implantation1

After your eggs have been collected, you may need to take progesterone to help prepare your
womb to support a developing embryo

Every month, the lining of your womb sheds and then regenerates itself, ready to receive a fertilised egg.
During IVF treatment, you may need to take a drug called progesterone that helps encourage your womb
lining to thicken at just the right time for the developing embryo to implant successfully and also helps to
maintain early pregnancy after successful IVF.

Progesterone is usually administered after the egg preparation injection of hCG or on the day the embryo is
returned to the womb.

Progesterone can be administered as:
  • – Vaginal drug delivery system
  • – Injection

References:

1. National Institute of Health and Care Excellence. Fertility problems: Assessment and treatment [CG156].

Available: https://www.nice.org.uk/guidance/cg156 (last accessed on April 2021).

UK-RMMH-2100020 | Date of preparation: June 2021

Preparing your eggs ready for collection

Just before you come in for your egg collection appointment, you’ll need to take a final hormone injection

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