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Doctor insights on: Ivf Blastocyst Implantation

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Dr. Qamar Khan
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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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

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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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Is the development and stages of zygote, blastocyst, etc. The same whether or not u have had IVF or the natural way?

Same: Development is the same, the difference is ivf embryos enter the uterine cavity earlier than in natural conception. ...Read more

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Going through IVF with wife. All tests of sperm has been in the 10-16 million range. Donated for implantation and it dropped to 50 total. Reasons?

Abstinence: Many factors affect sperm numbers. The length of the abstinence period before collection is a common factor. A recent high fever or illness could be a factor. If the sperm function is normal then no worries, as your wife probably had fewer eggs than sperm. Icsi can be used for unexpected changes. The babies will be normal too. Best wishes. ...Read more

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Is a 6 cell embryo on Day 3 an option to make it to a viable blastocyst for IVF transfer on Day 5? I know ideally it should be an 8 cell on Day 3.

Would be concerned a: Bout how it got to be 6 celled. The fertilized egg should split into two and each of the cells then consequently double so should be 1, 2, 4, 8, 16, etc. 6 is not part of that so was there some sort of problem during 4-to-8 split such that half the slcells didn't split? ...Read more

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I had a very early beta at 8dp5dt after IVF transferring 1 blastocyst that was just starting to hatch. My beta was 16 - I know this is low - any hope?

I had a very early beta at 8dp5dt after IVF transferring 1 blastocyst that was just starting to hatch. My beta was 16 - I know this is low - any hope?

WHAT DID YOUR DOC: Say? If u had ivf they should be answering that? And following u very closely and they are the ones that should be giving u the odds of success because they know u and how everything went obviously as I am sure they told u they will be doing another bhcg and I assume a Progesterone level in 2-3 days and am sure they told u the beta should double every 3 days or go up 66% in 2 days. ...Read more

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Can fibroids cause implantation failures during IVF procedures?

Can fibroids cause implantation failures during IVF procedures?

Yes: Fibroids that protrude into the uterine cavity and distorts the shape (submucous fibroid) can interfere with implantation and cause early miscarriage. ...Read more

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Can you use light heating pad on back and utetus to help implantation after IVF transfer?

Ask your IVF doc!: I am pretty sure there is no scientific data to answer your question conclusively - so ask your ivf center about this. I would not expect any effect on implantation likelihood if I were you, though. Make sure you are taking Folic Acid 1-5 mg daily, avoid stress/smoking/alcohol, maintain a positive attitude and good luck! ...Read more

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What's the biggest issue affecting IVF success for patients with endometriosis? Egg quality? Implantation?

Inflammation: Endometriosis is an inflammatory disease. Ivf avoids the problems with fertilization and egg transport, but there absolutely still could possibly still be issues with egg quality and with implantation. ...Read more

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I am 39 had IVF 22 eggs collected one blastocyst transferred on day 5. When is minimum time I can get positive hpt?

I am 39 had IVF 22 eggs collected one blastocyst transferred on day 5. When is minimum time I can get positive hpt?

Please call your IVF: Doctor, your ivf doc should have told u that exact answr right after the transfer and u should have a follow up exam scheduled with the ivf doc so u should call them now and ask this exact question. I am sure his nurse can answer that if the doc is tied up. ...Read more

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I know there's issues with embryo implantation due to endometriosis. Is there something to take to improve chances of implantation with ivf?

I know there's issues with embryo implantation due to endometriosis. Is there something to take to improve chances of implantation with ivf?

Yes: The medications your fertility specialist gave you will help improve your chances of successful pregnancy. Try not to add any other factors that might muddy the waters and impede your doctor's process in helping you. ...Read more

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What is the success rate for 1st IVF with the best possible embryo? We did a day 5 blastocyst transfer. My wife is 35 years old. 6 failed IUIs

It depends: It depends on the University Center or MD's office at which the IVF was done. Most results are reported as 3 or 6 month cycles for conception. Some Centers have even reported conception rates when no viable products can be obtained rather than live baby rates. So, this was a question that you should have asked your provider BEFORE embarking on IVF. ...Read more

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Is cumulus aided transfer a proven technique to increase implantation success in IVF procedures? Which clinic in the us utilizes this technique?

No: This technique, which adds cumulus cells from inside ovarian follicles to the ivf mixture, has not been shown to improve ivf success whatsoever. As ivf centers strive to improve pregnancy rates, if this was shown to help, this simple technique would be widely employed (but it's not). If you're doing ivf, find a center with the highest ongoing success rates you can afford. See us at www. Ivfmd. Com. ...Read more

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Can diarrhoea and churning cramps effect implantation after an IVF transfer. Had transfer Thurs afteroon started with this Sat mid morning.

Can diarrhoea and churning cramps effect implantation after an IVF transfer. Had transfer Thurs afteroon started with this Sat mid morning.

IVF cycles: Implantation of a fertilized egg can cause some cramping and "spotting", but normal causes of diarrhea and intestinal cramping will in general not directly affect implantation. There are causes of severe diarrhea and cramping which may need treatment, however, and prolonged exposure to this may later affect a pregnancy. See your doctor if this persists. ...Read more

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I have scoliosis and going through IVF Just read that Lovenox (enoxaparin) is bad for scoliosis. I started Lovenox (enoxaparin) last week. Implantation tomorrow. Risks?

I have scoliosis and going through IVF Just read that Lovenox (enoxaparin) is bad for scoliosis. I started Lovenox (enoxaparin) last week. Implantation tomorrow. Risks?

Not so: Lovernox is an anticoagulant so it stops your blood from clotting. I can't understand how that would affect scoliosis where your spinal column is bent. There is just no reason that I can fathom behind that statement. Then why are you on Lovenox (enoxaparin) in the first place? ...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