30-40% of women have small spotting from the vagina on the expected day of menstruation, which may be a sign of implantation (attachment) of the embryo in the uterine cavity and an early sign of the pregnancy. This occurs approximately 6 to 10 days after fertilization in natural cycles, and about 2 to 5 days after the transfer of the embryo in the uterus. This is a certain reaction of the uterus to physiological changes that take place in it and is not an alarming case.
Does freezing of the embryo reduce the result of in vitro fertilization?
Embryo vitrification (rapid freezing) and thawing are very sophisticated, recognized, and studied technology, which is why the risks of damaging the embryos are significantly reduced. The freezing method allows us to plan the most optimal day for transferring the embryo into the uterine cavity and to increase the chances of pregnancy, and at the same time reduce the risks of developing hyperstimulation syndrome. The capabilities of the method are important from the point of view of the storage of eggs and sperm (cryopreservation), for both medical and social indications.
Is the removal of the myoma nodule necessary before pregnancy?
If a woman is planning a pregnancy and the myoma does not cause a critical deformity of the uterine cavity, or bleeding, pain, pressure on neighboring organs (urinary bladder, rectum) and does not increase rapidly, then surgical intervention is not recommended. 3D ultrasound assessment of nodules existing in the uterine cavity plays an important role in determining the right treatment strategy, especially in the case of women with low ovarian reserve, where surgery may delay pregnancy planning for another 3 to 6 months.
Which method of treatment is recommended for impermeable fallopian tubes?
So-called plastic and reconstructive surgery on the uterine tubes to restore the permeability of the tubes is ineffective and time-consuming, which does not increase the chances of pregnancy but at the same time increases the risk of ectopic pregnancy. Therefore in vitro fertilization is an option for the women with tubular factor infertility.
Is the strict bed rest required after the transfer of the embryo to the uterine cavity?
Numerous large-scale studies have shown that bed rest after embryo transfer does not increase the chances of pregnancy and also does not reduce the probability of pregnancy failure. According to several researchers, a woman’s complete bed rest may even harm the implantation of the embryo at the expense of worsening the blood supply to the uterus.
This blog was prepared by Ketevan Kantaria, fertility specialist, obstetrician-gynecologist, Magister of the University of Valencia