Progesterone(P4)
hormoneDefinition
A hormone produced primarily by the corpus luteum after ovulation that prepares the uterine lining for embryo implantation.
In IVF Treatment
After embryo transfer, progesterone supplementation is commonly prescribed to support the uterine lining. It is given as injections (PIO), vaginal suppositories (Endometrin, Crinone), or oral capsules and continued according to your clinic's protocol.
Frequently Asked Questions
How long do I take progesterone after transfer?
Many clinics continue progesterone into early pregnancy, but the timing varies by protocol, transfer type, and lab monitoring. Follow your clinic's instructions before changing or stopping medication.
What is a good progesterone level after transfer?
Target progesterone levels vary by clinic, medication route, and timing of the blood draw. Your clinic will interpret the result and adjust your plan if needed.