The translation of "22号来月经排卵期是几号" into English is: **"If my period starts on the 22nd, on which day is my ovulation?"**

Generally, calculating a woman's ovulation period requires consideration of the menstrual cycle. If experiencing discomfort or difficulty in conceiving, it is advisable to seek timely medical consultation for monitoring. Detailed explanation is as follows:

If the menstrual cycle is regular, taking a 28-day cycle as an example, ovulation typically occurs around the 5th of the following month if menstruation starts on the 22nd. This is because the ovulation day generally occurs 14 days before the next menstrual period. Counting back 14 days from the 22nd indicates the ovulation day is around the 5th of the next month. The period around four to five days before and after the ovulation day constitutes the ovulation period, so the overall ovulation period usually falls roughly between the 1st and the 9th of the next month.

If the menstrual cycle is irregular, for example, lasting 30 days, then the actual cycle should be considered. Calculate by counting back 14 days from the expected start date of the next menstrual period to determine the corresponding ovulation day and ovulation period. For instance, if the next menstrual period is expected to start on the 24th, the ovulation day would be around the 10th, and the ovulation period would range from the 6th to the 14th.

When estimating the ovulation period, it is important to note that the menstrual cycle may fluctuate due to emotional or lifestyle factors; therefore, this method provides only an approximate estimation. For couples planning pregnancy, combining basal body temperature tracking and ovulation test strips can improve accuracy. If mild abdominal pain or increased clear, egg-white-like vaginal discharge occurs during the ovulation period, these are usually normal physiological phenomena and should not cause excessive concern; maintaining good vulvar hygiene is sufficient.