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Doctor insights on: Ivf Blastocyst Implantation

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Dr. Arthur Balin
3 doctors shared insights

Ivf (Definition)

In vitro fertilization is an assisted reproductive technology. Ivf is a procedure used to treat fertility problems and assist with the conception of a child. During ivf mature eggs are retrieved from the ovaries and fertilized by sperm in a lab. A few days later, the fertilized egg (embryo) or eggs are implanted into the uterus. One cycle of in vitro fertilization ...Read more


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I'm having spotting after a failed IVF cycle, any chance that it was late implantation or am i just delusional?

I'm having spotting after a failed IVF cycle, any chance that it was late implantation or am i just delusional?

Unlikely: Its more likely that your hormonal levels are altered from the cycle and may cause this. On the other hand, other possibilities include: 1. Undetected polyps 2. Rebound ovulation (earlier then usual) 3. Cervical trauma from the embryo transfer. ...Read more

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1st IVF cycle had 5/16 mature eggs. Only 2 blastocysts, both had chromo abnorm. I'm 41. Any way to improve % of mature eggs / increase # of blasts?

1st IVF cycle had 5/16 mature eggs. Only 2 blastocysts, both had chromo abnorm. I'm 41.  Any way to improve % of mature eggs / increase # of blasts?

IVF with PGS: Although the result may be sub-optimal, knowing how you responded to the medications and how the follicles grew will help your doctor to improve the chance of success with the next cycle and may increase the number of embryos you will have. Doing the preimplantation genetic screening of the embryos will improve your chance of success with the transfer. ...Read more

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How often does late implantation occur in IVF?

How often does late implantation occur in IVF?

IVF implantation: After transfer of the embryo implantation occurs about 6-10 days later. There will always be some degree of human variation and the exact timing of implantation can not be predicted ahead of time. There is a physiologic window for implantation to occur by the nature of our physiology. Exactly how long that window is in any one individual during any one cycle is not known. ...Read more

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How late does implantation occur after IVF transfer?

How late does implantation occur after IVF transfer?

Implantation: Happens when embryos are between 6-7 days old. So if you have a d3 transfer, implantation is 3-4 days later; if you have a d5, implant is 1-2 days later. Always. ...Read more

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Can a day 5 blastocyst be transferred in day 7 of my natural cycle through ivf?

Can a day 5 blastocyst be transferred in day 7 of my natural cycle through ivf?

No: The window of implantation appears to close at about noon on day 6 post-retrieval. While there may be occasional pregnancies, the success rate drops significantly. I am not sure why you or your doc would want to transfer on day 7, but it is almost certainly a poor idea. ...Read more

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In failed IVF , how can one determine if it is due to implantation failure ? What causes implantation failure

In failed IVF , how can one determine if it is due to implantation failure ? What causes implantation failure

Negative preg. test: Embryos that implant ('take' in the lining of the uterus) make detectable levels of HCG hormone, so embryos that implant and then fail later cause a 'biochemical pregnancy' or miscarriage. Embryo transfer with negative blood HCG means embryos didn't implant. Possible causes: genetic or metabolic problems in the embryos, polyps or other problems with uterine lining, or issues with embryo transfer. ...Read more

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Is 67 a low beta hCG 9 days after a 5 day blastocyst tansfer? Ivf.

Is 67 a low beta hCG 9 days after a 5 day blastocyst tansfer? Ivf.

No: There is no specific initial HCG level that is considered normal. Most reproductive endocrinologists like a level of 50 or more miu/ml. Most importantly HCG repeated 2-3 days latter should double, in your case 130-140miu/ml. Best whishes. ...Read more

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Does long hormones stimulation affect implantation? done my fresh IVF and it was negative

Discuss with doctor: The regimens used should not make implantation more difficult. The combo of meds usually makes it more likely to have a successful cycle. However the implantation success is less predictable ...Read more

Implantation (Definition)

One common meaning refers to the process by which an embryo attaches to the uterus of a woman so that she is pregnant. Many think of it as 'sticking.' implantation in humans always occurs when the embryo is between 6-7 days old. A very popular concept on the internet now in 2012, 'implantation bleeding, ' is speculative ...Read more


Blastocyst (Definition)

We use this term for one of the early phases after fertilization, in which the mass of cells produced by the division of the fertilized egg has acquired a central cavity, making it hollow, and one can tell which cells will become ...Read more