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  2. Embryo transfer - Wikipedia

    en.wikipedia.org/wiki/Embryo_transfer

    Embryo transfer can be done at day two or day three, or later in the blastocyst stage, which was first performed in 1984. [1] Factors that can affect the success of embryo transfer include the endometrial receptivity, embryo quality, and embryo transfer technique.

  3. Embryo culture - Wikipedia

    en.wikipedia.org/wiki/Embryo_culture

    The duration of embryo culture can be varied, conferring different stages of embryogenesis at embryo transfer. The main stages at which embryo transfer is performed are cleavage stage (day 2 to 4 after co-incubation) or the blastocyst stage (day 5 or 6 after co-incubation). [1] Embryos which reach the day 3 cell stage can be tested for ...

  4. Partner-assisted reproduction - Wikipedia

    en.wikipedia.org/wiki/Partner-assisted_reproduction

    The timeline of reciprocal IVF depends on if a couple chooses to undergo a fresh or a frozen transfer: A fresh embryo transfer IVF cycle lasts around 17–20 days and 10 days after the embryo is transferred to wait for the results of a pregnancy test. [14] A frozen embryo transfer first involves one of the cycles dedicated to the genetic mother.

  5. In vitro fertilisation - Wikipedia

    en.wikipedia.org/wiki/In_vitro_fertilisation

    Embryo culture until the blastocyst stage confers a significant increase in live birth rate per embryo transfer, but also confers a decreased number of embryos available for transfer and embryo cryopreservation, so the cumulative clinical pregnancy rates are increased with cleavage stage transfer. [40] Transfer day two instead of day three ...

  6. Human reproduction - Wikipedia

    en.wikipedia.org/wiki/Human_reproduction

    Chance of fertilization by menstrual cycle day relative to ovulation [14] Pregnancy rates for sexual intercourse are highest during the menstrual cycle time from some 5 days before until 1 to 2 days after ovulation. [15] For optimal pregnancy chance, there are recommendations of sexual intercourse every 1 or 2 days, [16] or every 2 or 3 days. [17]

  7. Third-party reproduction - Wikipedia

    en.wikipedia.org/wiki/Third-party_reproduction

    The embryo implanted in the surrogate may be fertilised using sperm from the male partner of the 'commissioning couple', or by using sperm provided by a sperm donor. Embryo donation is where extra embryos from a successful IVF of a couple are given to other couples or women for transfer with the goal of producing a successful pregnancy.

  8. Scientists developed a new method for the perfect boiled egg ...

    www.aol.com/perfect-hard-boiled-eggs-scientists...

    Lead study author Dr. Ernest Di Maio and his colleagues cooked 160 eggs, testing the different egg-boiling techniques and observing the changes in heat throughout each of the eggs.

  9. Human embryonic development - Wikipedia

    en.wikipedia.org/wiki/Human_embryonic_development

    The embryo is joined to the trophoblastic shell by a narrow connecting stalk that develops into the umbilical cord to attach the placenta to the embryo. [11] [15] Arteries in the decidua are remodelled to increase the maternal blood flow into the intervillous spaces of the placenta, allowing gas exchange and the transfer of nutrients to the ...