Patient's question:
Which methods can be used to determine ovulation, and what temperature is considered normal for ovulation?Doctor's answer:
The body temperature is about 0.5 degrees higher than usual.The method of calculating ovulation based on the menstrual cycle is also known as the calendar method. Both menstruation and ovulation are influenced by endocrine hormones from the pituitary gland and ovaries, exhibiting cyclical changes. The lengths of both cycles are consistent, occurring once per month, with ovulation occurring between two menstrual periods. A woman's menstrual cycle can vary in length, but the interval between the day of ovulation and the start of the next menstrual period is relatively fixed, generally around 14 days. Based on this relationship between ovulation and menstruation, it is possible to calculate the ovulation period based on the menstrual cycle. The calculation method starts from the first day of the next menstrual period, subtracting 14 days (or counting backward 14 days) to determine the ovulation day. The ovulation day, along with the 5 days before it and the 4 days after it, together form the ovulation period. This is the theoretical basis for the safe period method of contraception. For example, if a woman's menstrual cycle is 28 days long, and her last menstrual period started on December 1st, her next menstrual period would be on December 29th (December 1st plus 28 days). Subtracting 14 days from December 29th gives December 15th as the ovulation day. The ovulation period would then be from December 10th to December 19th (the ovulation day plus 5 days before and 4 days after).