In today's society, many men do not use condoms in order to seek excitement or their own comfort, but this results in trauma to women, who then need abortion after an unwanted pregnancy, which is extremely harmful to the body. Therefore, we need to know our safe period. After the menstruation ends, we often want to release sexual desire. So when can we have sex without getting pregnant? The main function of the ovaries is to produce eggs and synthesize ovarian hormones, while the uterus and fallopian tubes are reproductive organs. The ovaries contain hundreds of thousands of follicles, each of which contains an egg. The follicles are basically non-functional before puberty. During puberty, under the action of gonadotropin from the anterior pituitary gland, immature follicles gradually develop and synthesize estrogen. When the follicle matures and ovulates, the follicle wall collapses, the cells become larger and yellower, and are called the corpus luteum. It not only synthesizes estrogen but also produces progesterone. As the ovaries change, the endometrium is also affected and undergoes corresponding cyclical changes. After ovulation, due to the combined effects of estrogen and progesterone, the endometrium becomes edematous, the glands produce a large amount of mucus and glycogen, and the thickness of the endometrium increases from 1 mm to 6 mm, which is called the secretory endometrium. If the egg released at this time is fertilized, the fertilized egg is transported to the uterus through the fallopian tube for development, which is called pregnancy. The pregnancy tissue synthesizes a chorionic gonadotropin, which supports the continued development of the corpus luteum of the ovary. If the egg is not fertilized, the corpus luteum will atrophy and stop secreting estrogen and progesterone about 14 days after ovulation. At this time, the blood vessels in the endometrium will contract, the endometrium will necrotize and fall off, causing bleeding and forming menstruation. Based on the above reasons and explanations, we know that it is not easy to get pregnant by having sex during menstruation or a woman’s safe period. Therefore, if you do not want to get pregnant, it is more appropriate to have sex during the safe period. The few days before and after menstruation are all considered safe periods. However, it is still recommended to use contraceptive measures such as condoms when having sex in daily life. |
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