Why Do I Need Progesterone After Fertility Treatment?
Progesterone is often used after fertility treatments such as IVF and, in some cases, IUI or frozen embryo transfer. This is called luteal phase support.What does progesterone do?Progesterone is a hormone naturally produced after ovulation. It helps prepare and maintain the uterine lining so that an embryo can implant and an early pregnancy can be supported.During some fertility treatments, the body may not produce enough progesterone on its own. In these situations, additional progesterone may be prescribed.Why is progesterone commonly used after IVF?Ovarian stimulation, medications used to control ovulation, and the egg retrieval process can affect normal luteal function. As a result, progesterone production after egg retrieval may not provide optimal support for the uterine lining.For this reason, progesterone is routinely used for luteal support after egg retrieval in many fresh IVF cycles.What about frozen embryo transfer?The need for progesterone depends on how the frozen embryo transfer (FET) cycle is prepared.In a hormone-prepared FET cycle in which ovulation does not occur, the body does not form a functioning corpus luteum to produce progesterone. Progesterone medication is therefore an essential part of preparing and maintaining the uterine lining.In a natural or modified-natural FET cycle, your body may produce progesterone after ovulation. Additional progesterone may still be prescribed depending on the protocol and your individual circumstances.Is progesterone always needed after IUI?No. Progesterone may be prescribed after some stimulated IUI cycles, but it is not routinely required for everyone. Whether luteal support is recommended depends on the medications used, your ovulation pattern, and your clinic's treatment protocol.How is progesterone given?Progesterone can be administered in several forms, including vaginal capsules, tablets or gels, injections, and oral medication. The formulations commonly used vary by country and clinic.No single form is appropriate for everyone. Your fertility specialist will select the formulation, dose, and schedule based on your treatment protocol.How long do I need to use it?The duration of progesterone treatment varies. If pregnancy occurs, progesterone may be continued for a period of time during early pregnancy depending on the type of fertility treatment and clinic protocol. As pregnancy progresses, the placenta gradually becomes the main source of progesterone.Do not stop or change progesterone on your own, even after a positive pregnancy test. Follow the schedule given by your fertility clinic.