Doctor insights on:
What Does It Feel Like When The Embryo Implants
Cell division starts: Right after fertilization. The blastocyst is the preimplantation embryo. It has a varying cell number (30 to 200). ...Read more
Great question: In most cases we do not know. Some reasons: 1) poor quality, old, or abnormal embryo, some estimate only 1 embryo in 4 will be successful, 2) inappropriately developed endometrium, which can happen if too much/too little Progesterone before transfer, 3) bad placement or rough/difficult transfer. Many things we still do not know! ...Read more
Please clarify?: A human embryo can implant 6-7 days after fertilization, and will produce detectable hCG (if the pregnancy proceeds normally) by about 10-11 days. This is 2-3 days before the expected period. An embryo cannot implant as late as 3 weeks after fertilization. I hope this helps, please submit again and clarify if you are asking a different question. Good wishes. ...Read more
How many cells does an embryo/blastocyst have before it implants? And how many days after its fertilized does it implant?
About a week: Implantation generally occurs about a week after fertilization. By this time, the embryo is called a blastocyst, which is a ball of many cells (up to hundreds) divided into regions called the trophoblast (the part that will become the placenta) and inner cell mass (part that will become the baby). ...Read more
Why would a embryo transfer of a excellent quality blastocyst fail to implant? What should I ask at follow up?
Possible reasons. ..: Could be - 1) genetic or metabolic abnormalities in the embryo, 2) problems with the lining of your uterus including polyps, or 3) difficulties with the embryo transfer itself. For 2) you should have had a saline sonogram (shg) or other procedure to check your cavity and ultrasounds to check your lining. Single embryo transfer (set) has a lower pregnancy rate than 2 embryos, even if you're young. ...Read more
Does a polypectomy 3 weeks prior of embryo transfer cause the embryo not to implant? Maybe because it didn't heal?
Where was UR polyp?: Are you talking about polyps of the nose, stomach, colon, uterus, or some other structure? Happy to help if you can clarify the circumstance of your question--. ...Read more
What does a frozen embryo transfer entail? How much time off will I need to take from work? Are they less likely to implant?
Depends on freeze &: The doctor's/center's protocols. Vitrified embryos have a success rate equal to fresh in most of todays' programs; embryos frozen in the older 'slow freeze' method are roughly 1/2 as likely to result in pregnancy vs. Fresh. Time-off-work is less than with a fresh IVF cycle but can vary a lot form center to center. ...Read more
How many days after fertilization does the fertilized egg become a blastocyst? Then embryo? What implants-the blastocyst or embryo?
The process: As the fertilized egg divides, it is first known as a morula. Approximately 5 days from first fertilization it forms into a hollow ball known as a blastocyst. This blastocyst implants and begins to sort itself out into different layers--the inner group becomes the embryo and the outer layer will work to nourish and protect. At approximately 6-7 weeks from time of fertilization, an embryo begins. ...Read more
No: Physiologically your body does not work that way. ...Read more
What are the factors positively influencing a successful implant of the embryo in an icsi IVF procedure?
Several: Age of female most important, ovarian reserve tests (fsh, amh, afc), stimulation factors, excess embryos for freezing, number and quality of embryos, day of transfer, chromosome screening, technique of transfer, and ejaculated vs testicular sperm. Also, icsi overused, so avoid it if possible - about 2-4% higher delivery without icsi. Icsi is just the technique to inseminate the egg. Best wishes. ...Read more
I am 44, using donor eggs (donor aged 31) and had two unsuccessful day 5 blastocyst implants. I have three embryos left. What are my chances?
Oocyte donation: If the embryos were good quality when they were frozen, you should still have a very good chance of getting pregnant. Still, even in young donors, not all the embryos are genetically normal even though they appear fine. The only way to tell if they are normal before transferring them would be through pre-implantation genetic screening. You could consider this next if you didn't conceive again. ...Read more
I'm 37yrs old I've had two live births and 3 miscarriages just did 3 embryo implants through IVF what my odds to get preg?
My uterine lining is 4.2 at day 12, my cycle normally about 30-31, is the lining grow too slow? Can the embryo implant if my lining is 4.2 at day 12?
Don't know: Many speculative reasons can be given that are very complicated. But in actuality the true reason that implantation fails is the "black box" question that still alludes us. ...Read more
I had frozen embryo transfer today and strained from constipation. I am worried that the pushing may have harmed the implant.?
No: Don't worry, it didn't. Your FET was fine. ...Read more
Does a uterine polypectomy 3 weeks prior to embryo transfer cause a healthy with no chromosomes abnormality blastocyst not to implant?
Is there a time period a hatching day 5 embryo needs to implant within or does it not matter as long as within the uterine receptivity window?
Time sensitive: Time sensitiveGet a more detailed answer ›
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