Post Date November, 16 2024
Women of normal reproductive age ovulate, and after sexual activity, the egg and sperm successfully combine to find a suitable location for implantation in the uterus, starting the process of life. Countless sperm are produced during each sexual activity, and eggs generally only ovulate once per menstrual cycle, so not every sexual activity produces life. Every menstrual cycle has a safe period. The probability of pregnancy during the safe period is greatly reduced, so what is the safe period? How to calculate the safety period?
What is the safety period?
There is a time zone during the safety period. It is safer to have sex during this period. In this period, the probability of female ovulation is extremely low. If a woman does not ovulate, the eggs and sperm will not combine to form a zygote and will not become pregnant. Therefore, the time period during which she has sex and does not ovulate is called the safety period.
How to calculate the safety period?
The safe period is related to ovulation and menstrual cycle. Firstly, for women with normal menstrual cycles. The safety period is relatively stable. The ovulation period usually occurs 14 days before the next menstrual cycle. Since the survival time of eggs after ovulation is usually 1-2 days, it is safer to start 4 days after ovulation and get closer to the menstrual period. The time from 4 days after ovulation to the next menstrual period is called the safe period after ovulation. The survival time of sperm in the female reproductive tract is 2 columns and 3 days, and the vitality of sperm is longer. It is easy to conceive 5 days before ovulation, and it is safe to approach the end of the last menstrual period. The period from the date of clean menstruation to 5 days before ovulation is called the pre ovulation safety period. Secondly, for women with irregular menstruation. The first step is to determine the ovulation period, as it cannot be predicted and it is difficult to determine the safe period before ovulation. In other words, there is no safe period before ovulation. The ovulation date was found through ovulation test strips and ultrasound examination of ovulation patterns. If there is normal ovulation, the safe period after ovulation is generally relatively stable. Because after ovulation, it enters the luteal phase. The luteal phase is preparation for the conception of life. If successful conception occurs after ovulation, the corpus luteum continues to secrete. If not pregnant for about 14 days, the corpus luteum shrinks, the uterus contracts, and the endometrium falls off, entering the next cycle of menstruation. Therefore, there is usually a safety period of approximately 8 to 10 days after ovulation. Secondly, the safety period is also related to the length of the menstrual cycle. This is mainly aimed at the safe period before ovulation. The safe period before ovulation is also long for those with long menstrual cycles. On the contrary, the safe period before ovulation is also short for those with short menstrual cycles. After the end of menstruation, ovulation begins, and there is no safe period before ovulation.
