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Doctor insights on: How Long After Fertilization Does Implantation Take Place

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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


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How long after fertilisation does implantation take place?

How long after fertilisation does implantation take place?

5-7 days: Within 1 week implantation occurs. Can vary based on how quickly the embryo grows and moves into the uterus. ...Read more

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How long after fertilization does implantation happen? Had unprotected sex dec.14th & 15(ovualtion day)i have a little blood could it be implantation

How long after fertilization does implantation happen? Had unprotected sex dec.14th & 15(ovualtion day)i have a little blood could it be implantation

6-7 days, but...: Implantation always happens 6-7 days after fertilization, 'implantation bleeding' is mostly a pop myth and usually doesn't happen. ...Read more

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Is hCG produced at time of fertilization (when sperm meets egg) or only when implantation occurs?

Is hCG produced at time of fertilization (when sperm meets egg) or only when implantation occurs?

Before implantation: Hcg is secreted by the embryo after fertilization but before implantation. The embryo reaches the blastocyst stage before it implants, with an inner cells that becomes the fetus, and trophoblast cells that make HCG and become part of the placenta. A little HCG is produced before implantation, but by the time we can *detect* HCG with a blood or urine pregnancy test implantation has already occurred. ...Read more

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What is the embryo doing from time of fertilization to implantation?

What is the embryo doing from time of fertilization to implantation?

Floating & growing.: The embryo floats down the fallopian tube and enters the uterus where it will implant itself in the uterine wall and establish a blood supply to the mother for further nourisment to continue its development. While floating through the fallopian tube, it has enough nourishment inherent in the egg to divide and grow. ...Read more

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Does spotting sometimes occur during fertilization? Not implantation, but fertilization. Also, are bananas ok to eat during the tww?

Does spotting sometimes occur during fertilization? Not implantation, but fertilization. Also, are bananas ok to eat during the tww?

Anytime: Spotting can occur at any time in a cycle, there is nothing about fertilization that causes spotting. They are not related. You can eat bananas anytime you like, they are good for you. Best wishes. ...Read more

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Is it true that the copper IUD allows fertilization but not implantation?

Is it true that the copper IUD allows fertilization but not implantation?

Works against sperm!: Copper ions prevent pregnancy by inhibiting the movement of sperm, because the copper-ion-containing fluids are directly toxic to sperm. ...Read more

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Can pcos affect the stage of implantation of the fertilized ovum,after the fertilization of ovum implantation can not occur because of pcos factors?

Can pcos affect the stage of implantation of the fertilized ovum,after the fertilization of ovum implantation can not occur because of pcos factors?

Clarify ?: Polycystic ovary syndrome has certain effects on the ability to conceive, but I don't believe that extends to altering the stage of implantation of the fertilized ovum. You really should discuss questions like this to a reproductive endocrinologist, I think that would help in your understanding of the physiology and effects of PCOS ...Read more

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Fertilization, implantation, gestation, what are these?

Definitions: Fertilization refers to sperm getting inside the egg and their DNA mixing to form an embryo. Implantation is when that embryo burrows into the wall of the uterus. Gestation refers to a pregnancy. ...Read more

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Wouldn't intercourse, fertilization and implantation have to occur atleast 1-2 weeks before an hCG level of 634 can be reached?

Wouldn't  intercourse, fertilization and implantation have to occur atleast 1-2 weeks before an hCG level of 634 can be reached?

HCG: Increased HCG levels do not automatically mean pregnancy. Some tumors might secrete hcg, too. We would need to know more information -age, history of intercourse (s), etc. ...Read more

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Please help! quantitative hCG at 5/6 DPO was <1.0, am i out this month or do I wait for implantation? I thought u produce hCG upon fertilization?

Wait: Hcg is not detectable reliably until around 10-12 days after ovulation, so wait a bit longer. There's craziness all over the internet about detecting HCG early, it's wrong. ...Read more

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Sorry,a follow up question to the previous. Will the morning after pill prevent fertilization/implantation in the egg knowing that they are ovulating?

Sorry,a follow up question to the previous. Will the morning after pill prevent fertilization/implantation in the egg knowing that they are ovulating?

No: The morning-after pill works by delaying ovulation. Sperm hang around for several days but no pregnancy will occur if ovulation is delayed until the sperm are all gone. If an egg is already there, the morning after pill doesn't prevent fertilization or implantation. The good news is that the egg is viable for a short time, not days and days. Best wishes! ...Read more

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How soon after sex is an egg fertilized? How soon after fertilization will your basal body temperature rise and implatation bleeding appear?

How soon after sex is an egg fertilized? How soon after fertilization will your basal body temperature rise and implatation bleeding  appear?

Varies: The egg typical survives and awaits fertilization in the reproductive tract for up to 24 hours. Basal body temperature rises not from fertilization but from the increase in Progesterone as a result of the lh surge at the time of ovluation. This surge is what is detected in home ovulation predictor kits. Implantation bleeding is inconsistent sign of pregnancy but can occur 1week after fertilizes. ...Read more