The follicular phase is the first day of menstruation and is related to the regularity of a woman’s menstrual cycle, the specific length of her menstrual cycle, her body type, etc. It needs to be analyzed on a case-by-case basis. The normal menstrual cycle includes the menstrual phase, follicular phase, ovulation phase and luteal phase. The follicular phase is the period from the day menstruation stops to the day the ovaries ovulate, and usually lasts about 10-14 days. In a woman with a regular menstrual cycle, where menstruation occurs once every 28 days and the menstrual period is usually around 5 days, the follicular phase is on day 6-14 of the menstrual cycle. However, the exact timing varies because there are certain individual differences. The follicular phase is the period of preparation for ovulation. If you are planning to get pregnant, you can go to the gynecology department of the hospital regularly to check the follicle development during this period, and if you find that the follicle is about to ovulate, you can make reasonable arrangements for intercourse.