Patient's question:
Doctor,I am 29 years old this year, and I am planning to have a baby. However, for the past few months, I haven’t been able to determine when my ovulation period is. It has been two to three months, and I haven’t taken any measures during sexual intercourse, but I haven’t gotten pregnant. I feel very distressed. I also don’t know when I ovulate. In December 2005, I specifically used a basal thermometer to measure my temperature. My period came on the 15th of December, and after that, I insisted on measuring my temperature every morning. It seems to be from New Year’s Day to today, with the temperature gradually rising. On January 1st and 2nd, it was around 36.7 degrees Celsius, and on the 3rd, it was...
Doctor's answer:
Hello: A normal fertile woman's ovary releases a mature egg each month. After the egg is released, it enters the fallopian tube and generally survives for 1 to 2 days. In contrast, sperm produced by men are continuously generated. Sperm typically remain active in the female reproductive tract for 2 to 3 days, and their fertilization capability lasts for up to 48 hours. If a woman has sexual intercourse within a certain period before or after ovulation, she may become pregnant. This period is known as the "ovulation period."It is important to track this period. On one hand, it increases the chances of conception for couples who have been unable to conceive due to missed ovulation periods. On the other hand, it allows couples who do not wish to conceive temporarily to avoid pregnancy by having intercourse outside the "ovulation period" without other contraceptive measures.
Common methods for calculating the "ovulation period" include:
1. Cervical mucus observation method (must be done at a hospital).
2. Basal body temperature measurement method. This refers to the body temperature measured immediately after waking up from a long sleep (usually in the morning), before any physical activity or speech. This is the basal body temperature. Under normal circumstances, the basal body temperature of a fertile woman is lower in the first half of the menstrual cycle and even lower during the ovulation period. After ovulation, it may suddenly or gradually rise by 0.3 to 0.6°C within 24 hours to a few days.
Therefore, it is best to start measuring basal body temperature on the first day of menstruation, measure it daily, and record the results on graph paper for observation and analysis.
3. Menstrual date calculation method. This refers to the belief that each ovulation occurs approximately 14 days before the onset of menstruation. Thus, the period from 5 days before ovulation to 5 days after ovulation