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How does pregnancy occur when sperm fertilizes an egg?


Sperm are the microscopic cells that are produced from the testicles of a man, according to the "planned parenthood" website, and during the sexual relationship a man produces millions of sperm, eventually, one sperm can fertilize an egg and thus pregnancy occurs.







As for the eggs, they are found in the ovaries, and every month each of the woman’s ovaries releases two mature eggs ready for fertilization by sperm, and the lining of the uterus begins to thicken in preparation for pregnancy, and ovulation occurs in most women at any time between the 11th to the 21st day of the cycle, beginning From the first day of the menstrual cycle.



  • Pregnancy occurs when a man's sperm fertilizes a mature egg from a woman, then the uterus officially begins when the fertilized egg implants in the lining of the uterus.



How does pregnancy happen?




The journey of the egg begins immediately, its departure from the ovary through the fallopian tube towards the uterus, and the egg can live from 12-24 hours, as it moves slowly through the fallopian tube, to see if there are any sperm around it or not.




If the semen is in the vagina, the sperm can swim through the cervix and into the fallopian tubes, to search for the egg to begin fertilization, the sperm can live 6 days to find the egg before it dies when a sperm cell fuses with the egg, this process is called Fertilization, the typical gestation period ranges from 38-42 weeks.




  • When the fertilized egg implants in the uterus, it releases pregnancy hormones that prevent the lining of the uterus from being damaged, which is why women during pregnancy do not have a period.




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