Embryoman
The post discusses various frozen embryo transfer protocols, which includes a medicated FET, natural cycle FET (true natural/modified natural), and mild ovarian stimulated FET, along with their scheduling. In addition, it examines whether one FET protocol is superior to another, the relevance of the corpus luteum in medicated vs natural cycle FETs, and optimal progesterone levels.
Researchers in a 2022 study compared the impact of endometrial thickness on pregnancy outcomes in fresh and frozen embryo transfer cycles.
Researchers in a 2019 study compared pregnancy outcomes with different serum β-hCG levels that were measured on day 16 of the embryo’s age (13dp3dt/11dp5dt).
This post covers the variety of reasons embryos can fail to implant or miscarry, including as a result of advanced maternal age, chromosomal translocations, lifestyle, endometritis, the microbiota, immunological issues, endometrial receptivity, the clinic, and more. Note that this is not a complete list, and will be updated periodically.
Researchers in a 2021 study found that intake of sugar-sweetened beverages was associated with lower sperm concentration and total sperm count.
Researchers in a 2021 review combined multiple studies on assisted hatching and found no clear improvement in live birth rates, though clinical pregnancy rates were slightly higher and the chance of multiple pregnancy increased.
