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Twin pregnancy - that is, we will be double parents
Twin pregnancy in Poland happens once in 80 pregnancies. Their number is basically stable, although a slight increase has been noted associated with the increasingly used infertility treatment.
Identical twins they look almost identical, arise when the fertilized egg divides into two parts. Fetuses have one placenta, but two amniotic sacs. In contrast, twins differ significantly from each other, fertilization is carried out with two eggs, two different spermatozoa (it can happen that by two different fathers).
Twin brothers have two placenta, two amniotic sacs, may have a different sex.
Twin pregnancy - causes
It cannot be clearly stated what contributes to the development of twin pregnancy. However, there is a group of women who are more susceptible to twin pregnancy. To a large extent they matter genes inherited by our ancestors.
They show an increased tendency to twin pregnancies women who had multiple pregnancy in their families. Father's genes are unlikely to matter here. Usually, twin genes appear in every second generation passing from grandmother to granddaughter - which, however, does not always have to mean a multiple pregnancy.
Many studies confirm that women who become pregnant between 30 and 40 years of age are more likely to give birth to twins. It is associated with hormones with which eggs are more mature and released in greater numbers in one cycle.
Fertility support of various types of hormonal therapies also affects the onset of twin pregnancy. During such therapy, the ovaries are forced to work intensively, which causes the release of several eggs ready for fertilization. The fertilized women have a good chance of twins in vitro method. During the procedure, several eggs are placed in the uterus, which increases the likelihood of fertilizing more of them.
Other factors also determine the likelihood of having twin pregnancy:
- numerous previous pregnancies,
- twin pregnancies in the past,
- taking contraceptives,
- obesity and high growth,
- two ovulations in one cycle.
Twin pregnancy - symptoms
The beginning of each pregnancy varies. Some mothers feel very good, others suffer from various ailments. When it comes to twin pregnancy, you should expect symptoms with doubled strength. However, each pregnancy is different and depends on many factors, so there is no rule.
There are several symptoms that may suggest that we are dealing with twin pregnancy. The most common symptoms of twin pregnancy and predispositions that may increase its likelihood are: