Progesterone is a hormone usually used in HRT cycles , progesterone is also used for other women reproductive issues too but I do not have much idea about it .Progesterone is a steroid hormone released by the corpus luteum that stimulates the uterus to prepare for pregnancy, if the pregnancy does not happen, the women gets her period and the endometrial lining sheds, and starts the period next cycle.
If a women falls pregnant the progesterone helps in keeping the pregnancy. In IVF pregnancies progesterone is given even before embryo transfer, like if its a day 3 transfer 3 days of progesterone pessaries or progesterone injections, sometimes both are given, then transfer is done. If its is a day 5 transfer five days of progesterone is given, after the transfer is done until, 10 to 12 weeks women need to take those progesterone suppositories, later the embryo produces its own progesterone, I am taking about IVF pregnancies.If their is any wrong in the information I have written here do correct me, if anybody has read this post.
PGS or pre-implantation genetic screening, is a genetic test performed on embryos produced through IVF. PGS gives information about embryos’ genetic health to help your embryologist select the best embryo for transfer and improve your chance of achieving a successful pregnancy.In simple terms, few cells are taken/biopsied from the already formed embryos to check if it has any chromosomal or genetic problem, and then the best embryo is selected and transferred, in the next FET cycle. PGS is usually done only when their are persistent implantation failures, abnormal growth of embryo and miscarriages.
PGS test is not suggested for all. PGS is a very expensive test. In my friends case which I have written about here, she had to abort her em-baby by taking oral pills,because her baby was growing on time and their was not heartbeat, so her doc told before going the PGS test, let her do a a bit less expensive blood test for both her and husband ,its called Karyotyping which I have written here, if that test comes normal she can go head with her next FET or if their is some chromosomal problem in either one of her or her husband, then they have to go for PGS.
FYI :This above post is a little about what I know due to the infertility treatments,and some is via the always great google search, resource.
PS:I am not a doctor, these are just my findings, my experiences and my infertility warrior friends experiences,which are a part of my life. I am half doctor myself because we go though so much,sometimes I feel I know my diagnosis better than my RE(Reproductive Endocrinologist). Hope these posts make some sense for people who are not a part of this journey.This post is a part of #AtoZchallenge2018.