Multiple mature eggs, which are often a result of hormonal stimulation, for fidelity fertilize them all. And again, just to be sure quite often do a double transfer. If you get accustomed both embryo (which is not uncommon), it turns twins. The remaining embryos are frozen and with proper supervision can be stored indefinitely." Modern technologies allow freezing the cryopreservation of embryos and not just sperm and an egg but that 15 years ago it was impossible. In theory, this makes the problem of the natural aging of the reproductive system is not so relevant: it is now possible to freeze eggs in 25, and to use them, for example, at 40. For more details Click Here
The American doctors call it "stop the biological clock." In other words, in our time - never late, but better hurry. The main hormones - Progesterone It is called "hormone of pregnancy": he prepares the endometrium (uterine lining) to the consolidation of a fertilized egg stops the menstrual cycle if pregnancy occurs, does not allow the muscles of the uterus to contract and stimulate its growth.
Estrogen the eggs to mature each month, under the influence of estrogen the endometrium starts to grow in the second phase of the menstrual cycle. Follicle stimulating hormone (FSH) stimulates follicular growth and maturation in the first phase of the menstrual cycle. Luteinizing hormone (LH) ensures proper operation of the sex glands and the production of sex hormones - progesterone and testosterone with high levels of LH in the blood - a sign of ovulation.
The American doctors call it "stop the biological clock." In other words, in our time - never late, but better hurry. The main hormones - Progesterone It is called "hormone of pregnancy": he prepares the endometrium (uterine lining) to the consolidation of a fertilized egg stops the menstrual cycle if pregnancy occurs, does not allow the muscles of the uterus to contract and stimulate its growth.
Estrogen the eggs to mature each month, under the influence of estrogen the endometrium starts to grow in the second phase of the menstrual cycle. Follicle stimulating hormone (FSH) stimulates follicular growth and maturation in the first phase of the menstrual cycle. Luteinizing hormone (LH) ensures proper operation of the sex glands and the production of sex hormones - progesterone and testosterone with high levels of LH in the blood - a sign of ovulation.