approximate time span between fertilization and implantation of blastocyst

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Dr. Scott Roseff answered:

Can implantation of a blastocyst occur a day or so after an abortion?

Unlikely

Pregnant
While anything is possible, the transfer of a blastocyst to the uterine cavity the day or two softer an abortion would very likely NOT result in implantation and pregnancy success.
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How soon after implantation does the blastocyst start to recieve from the mother?

Immediately

Blastocyst
The blastocyst was receiving everything it needed before implantation from the mother via passive diffusion. This continues after implantation and as the needs of the embryo increase the placenta develops.
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For a FET 5 day blastocyst transfer, does embryo implantation cramping necessary, I have still no signs of cramps on the 4dpt?

Not necessarily

Embryo
Embryo implantation usually causes no symptoms at all. So not having cramping does not mean you are less likely to get pregnant. Good luck!
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Dr. Warren Wolfe answered:

Is P4 level 11 on the transfer day of 6-day blastocyst in FET cycle too low to support successful implantation? What are minimum & optimal P4 levels?

Unable to answer

Implantation
Only your oncologist can give you the answer based on many factors in your history.
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What is the embryo doing from time of fertilization to implantation?

Floating & growing.

Embryo
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.
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Will orgasm at the time of possible implantation of a fertilized egg affect the process?

Nope

Hand
Some people think that an orgasm of the female can cause the cervix to "dip" into a puddle of semen which could enhance delivery of the sperm to the fallopian tubes. But in your scenario, sperm have already been delivered and one of them has penetrated the egg. Orgasm is unlikely to make any difference. On the the other hand, I don't think it will hurt!
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Is HCG produced at time of fertilization (when sperm meets egg) or ONLY when implantation occurs?

Before implantation

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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
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Dr. Karen J. Jones answered:

Can I have sex before implantation time?

Yes

Sex
Even if a woman has just barely gotten pregnant, the embryo has been fertilized and isn't yet implanted, having sex will not interfere with a very early pregnancy.
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Implantation signs showing at the same time due for period?

Only one!

Implantation
The only believable "implantation sign" that happens when your period would be due is a positive pregnancy test. I suggest doing one, and good luck.
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