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Recurrent IVF failure is a much more broad term and includes all repeated failures to get pregnant from IVF. Repeated implantation failure specifically refers to those failures due to unsuccessful implanting to the uterus wall. [1] An unsuccessful implantation can result from problems with the mother or with the embryo.
On the other hand, in women who have had previous unsuccessful treatment, IVF achieves a live birth rate approximately 2–3 times greater than ovarian stimulation combined with IUI. [8] IUI and ICI has higher pregnancy rates when combined with ovarian stimulation in couples with unexplained infertility, for IUI being 13% unstimulated and 15% ...
IUI is an economic option for same-sex couples and can be done without the use of medication. [36] According to a study from 2021, lesbian women undergoing IUI had an average clinical pregnancy rate of 13.2% per cycle and 42.2% success rate giving the average number of cycles at 3.6. [37]
The World Health Organisation also adds that 'women whose pregnancy spontaneously miscarries, or whose pregnancy results in a still born child, without ever having had a live birth would present with primarily infertility'. [16] Secondary infertility is defined as the difficulty in conceiving a live birth in couples who previously had a child. [16]
Thus, if a clomiphene treatment has a chance to establish a pregnancy in 8% of cycles and costs $800, the expected cost is $9,700 to establish a pregnancy, compared to an IVF cycle (cycle fecundity 40%) with a corresponding expected cost of $48,300 ($19,300 × 40%). [citation needed]
However, for women aged ≥40 years, the overall live birth rate is 2.0% per cycle, and there appears to be no benefit after a single cycle of COH/IUI. [12] It is therefore recommended to consider in vitro fertilization after one failed COH/IUI cycle for women aged ≥40 years. [12] Body mass index [13] Previous hyperstimulation experiences [13]
The most common site of the extrauterine pregnancy is the fallopian tube. However, other sites of implantation include the cervix, ovary, and abdomen. [3] Although heterotopic pregnancies were once thought to be a rare phenomenon, the incidence has increased due to the increasing use of assisted reproductive technologies. [3]
A woman's breasts change during pregnancy to prepare them for breastfeeding a baby. Normal changes include: Tenderness of the nipple or breast; An increase in breast size over the course of the pregnancy; Changes in the color or size of the nipples and areola; More pronounced appearance of Montgomery's tubercles (bumps on the areola)